Knowledge (XXG)

Prince Creek Formation

Source 📝

1178: 884: 1326: 1128: 765: 387: 118: 1297: 663: 320: 1218: 3469: 302: 957: 840: 361:
The Prince Creek Formation aged from 80 to 61.7 million years ago. The Kikak-Tegoseak Quarry, where almost all of the dinosaur fossil are from, is located near the middle of the formation, and is about 70.6 to 69.1 million years ago. A lower section, the Kogosukruk Tongue, ages from 72 to 71 million
405:, and were, at the time of burial, on a muddy coastal plain. Leafy plants, roots and pollen are known from the formation, and they show that trampling by dinosaurs was common. It can be proven that during the Maastrichtian the Prince Creek Formation bordered a large body of water by the presence of 477:
towering above them. The mean temperature was 5 to 6 °C (41 to 43 °F), with the mean temperature during the cold months being 2 to 4 °C (36 to 39 °F) and the mean temperature during the warm months being 10 to 12 °C (50 to 54 °F). Mean annual precipitation was 500 to
4474:
Fiorillo, A. R.; Hasiotis, S. T.; Kobayashi, Y.; Breithaupt, B. H.; McCarthy, P. J. (2011). "Bird tracks from the Upper Cretaceous Cantwell Formation of Denali National Park, Alaska, USA: a new perspective on ancient northern polar vertebrate biodiversity".
5275:
Flaig, P.P.; McCarthy, P.J.; Fiorillo, A.R. (2011). "A Tidally-Influenced, High-Latitude Coastal-Plain: the Upper Cretaceous (Maastrichtian) Prince Creek Formation, North Slope, Alaska". In Stephanie K. Davidson; Sophie Leleu; Colin P. North (eds.).
5210:
Eberle, Jaelyn J.; Clemens, William A.; McCarthy, Paul J.; Fiorillo, Anthony R.; Erickson, Gregory M.; Druckenmiller, Patrick S. (2019-02-14). "Northernmost record of the Metatheria: a new Late Cretaceous pediomyid from the North Slope of Alaska".
4014:
Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Cretaceous, North America)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 574-588.
3960:"Anatomy, Evolution, and Paleoenvironmental Interpretation of an Ancient Arctic Coastal Plain: Integrated Paleopedology and Palynology from the Upper Cretaceous (Maastrichtian) Prince Creek Formation, North Slope, Alaska, USA" 5303:
Flaig, P.P.; Fiorillo, A.R.; McCarthy, P.J. (2014). "Dinosaur-bearing hyperconcentrated flows of Cretaceous Arctic Alaska—Recurring catastrophic event beds on a distal paleopolar coastal plain".
5415: 378:
and mollusks. In the middle of the formation is the Coleville River Bluff, which extends from the Late Campanian to the Middle/Late Maastrichtian, in which pollen spores are common.
3011:
Very abundant in the early Maastrichtian and Indeterminate level of the formation, becoming rarer until the Middle/Late Maastrichtian. Also found in the Schrader Bluff Formation.
4227:
Marincovich, L.; Brouwers, E. M.; Carter, L. D. (1985). "Early Tertiary marine fossils from northern Alaska: Implications for Arctic Ocean paleogeography and faunal evolution".
5266:
Flaig, P.P. (2010). "Depositional Environments of the Late Cretaceous (Maaastrichtian) Dinosaur-Bearing Prince Creek Formation: Colville River Region, North Slope, Alaska".
500:
Indeterminate tyrannosaurid remains are present, mostly in the form of teeth. The teeth are from the Kikak-Tegoseak Quarry, Liscomb Quarry, and Byers Bed, totaling 8 teeth.
5395: 5019:
Sharpe, Henry S.; Powers, Mark J.; Dyer, Aaron D.; Rhodes, Matthew M.; McIntosh, Annie P.; Garros, Christiana W.; Currie, Philip J.; Funston, Gregory F. (2024-04-16).
5375: 1167:
species, found in one of the highest latitudes of centrosaurine discoveries. A discovery in the Kikak-Tegoseak Quarry was identified in 2013 as a juvenile of
4964:
Brown, C.M.; Druckenmiller, P. (2011). "Basal ornithopod (Dinosauria: Ornithischia) teeth from the Prince Creek Formation (early Maastrichtian) of Alaska".
5380: 2426:
Indeterminate remains abundant in the Early Maastrichtian, and still numerous in the Late Maastrichtian. Also found in the Schrader Bluff Formation.
3933: 5360: 5339:
Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. 
4414:(2000). "Theropod Teeth from the Prince Creek Formation (Cretaceous) of Northern Alaska, with Speculations on Arctic Dinosaur Paleoecology". 3498:
Common and abundant in the Early Maastrichtian, becoming rarer towards the Late Maastrichtian. Also found in the Schrader Bluff Formation.
1171:. This discovery shows that the crest started to develop in the front of the snout, then extending farther back until it reaches the eye. 478:
1,500 millimetres (20 to 59 in)/year. The paleolatitude of the formation at the time of deposition was around 80°–85°N, high in the
5139: 5060:"The First Definite Lambeosaurine Bone From the Liscomb Bonebed of the Upper Cretaceous Prince Creek Formation, Alaska, United States" 4832:(1987). "Plant Megafossils, Vertebrate Remains, and Paleoclimate of the Kogosukruk Tongue (Late Cretaceous), North Slope, Alaska". In 5344: 5293: 4020: 3979: 4658:(2009). "Description of two partial Troodon braincases from the Prince Creek Formation (Upper Cretaceous), North Slope Alaska". 4294:"Stratigraphy and Facies of Cretaceous Schrader Bluff and Prince Creek Formations in Colville River Bluffs, North Slope, Alaska" 5420: 4703:"A New Troodontid Theropod, Talos sampsoni gen. et sp. nov., from the Upper Cretaceous Western Interior Basin of North America" 4192:(2005). "The First Pachycephalosaurine (Dinosauria) from the Paleo-Arctic of Alaska and its Paleogeographic Implications". 5400: 1177: 264: 225: 218: 5134:. Anchorage, Alaska: U.S. Dept. of the Interior, Minerals Management Service, Alaska Outer Continental Shelf Region. 5004:
Re-examination of the cranial osteology of the Arctic Alaskan hadrosaurine with implications for its taxonomic status
3712:
Numerous in the Late Campanian, becoming abundant in the Maastrichtian. Also found in the Schrader Bluff Formation.
5365: 4323:
Druckenmiller, Patrick S.; Erickson, Gregory M.; Brinkman, Donald; Brown, Caleb M.; Eberle, Jaelyn J. (June 2021).
5058:
McCarthy, Paul J.; Tykoski, Ronald S.; Kobayashi, Yoshitsugu; Fiorillo, Anthony R.; Takasaki, Ryuji (2019-03-29).
5410: 5405: 5385: 4427: 4205: 883: 5370: 4701:
Zanno, Lindsay E.; Varricchio, David J.; O'Connor, Patrick M.; Titus, Alan L.; Knell, Michael J. (2011-09-19).
1884: 438: 169: 4248: 5003: 1537: 159: 4575:
Chiarenza, A. A.; Fiorillo, A. R.; Tykoski, R. S.; McCarthy, P. J.; Flaig, P. P.; Contreras, D. L. (2020).
1936: 4888:(Dinosauria: Ceratopsidae) Nasal Reveals Unexpected Complexity of Craniofacial Ontogeny and Integument in 4289: 4273: 3964:
New Frontiers in Paleopedology and Terrestrial Paleoclimatology: Paleosols and Soil Surface Analog Systems
3094: 4639: 3274: 5390: 4411: 3400: 1858: 4643: 4285: 2949: 2400: 5155:
Eberle, Jaelyn J.; Clemens, William A.; Erickson, Gregory M.; Druckenmiller, Patrick S. (2023-01-01).
4837: 4651: 4277: 3580: 2229: 5312: 5220: 5168: 5156: 5071: 5020: 4973: 4905: 4714: 4667: 4588: 4526: 4484: 4336: 4265: 4236: 4189: 4181: 4080: 3856: 3758: 3444: 3131: 2914: 2737: 2158: 1118: 131: 5278:
From River to Rock Record: The Preservation of Fluvial Sediments and their Subsequent Interpretation
4829: 4771:
Sullivan, R.M. (2006). "A taxonomic review of the Pachycephalosauridae (Dinosauria: Ornithischia)".
4058: 3892: 3508: 3239: 2878: 2808: 2641: 2606: 2570: 2534: 2123: 1972: 4825: 4281: 4269: 3821: 3364: 3203: 3167: 2985: 2772: 2498: 2365: 2329: 1898: 1740:
A conifer, one of two from the region. It dominated the forest community of the Kogosukruk Tongue.
338: 2843: 2265: 1718: 5328: 5244: 5192: 4849: 4833: 4683: 4655: 4550: 4431: 4209: 3989: 3722: 3056: 3021: 2676: 2463: 2194: 932: 902: 894: 4457:"3.33 Alaska, United States; 3. Prince Creek Formation," in Weishampel, et al. (2004). Page 587. 1325: 1127: 2008: 1789: 1750: 764: 386: 117: 5340: 5289: 5236: 5184: 5135: 5105: 5087: 5040: 4933: 4750: 4732: 4616: 4542: 4362: 4354: 4108: 4016: 3975: 1226: 850: 754: 705: 673: 5320: 5281: 5228: 5176: 5095: 5079: 5032: 4981: 4923: 4913: 4740: 4722: 4675: 4647: 4606: 4596: 4534: 4492: 4423: 4407: 4344: 4244: 4201: 4185: 4156: 4098: 4088: 4054: 3967: 3544: 1478: 1436: 1296: 1187: 1138: 662: 4861: 4001: 875: 812: 654: 350: 397:
During the time when the Prince Creek Formation was deposited, Earth was going through a
5316: 5224: 5172: 5075: 4977: 4909: 4718: 4671: 4592: 4530: 4488: 4340: 4240: 4084: 5100: 5059: 4928: 4883: 4745: 4702: 4611: 4576: 4103: 4066: 1305: 1217: 721: 257: 141: 353:. Dinosaur remains are among the fossils that have been recovered from the formation. 5354: 5332: 5196: 4687: 4554: 4514: 4435: 4213: 3959: 1247: 1092: 1061: 823: 623: 479: 467: 346: 325: 69: 31: 27: 5248: 3468: 4679: 4062: 3435: 1447: 390: 206: 5232: 5180: 5036: 4515:"An ornithomimosaurian from the Upper Cretaceous Prince Creek Formation of Alaska" 4918: 4727: 4601: 4538: 4513:
Watanabe, Akinobu; Erickson, Gregory M.; Druckenmiller, Patrick S. (2013-09-01).
4496: 4093: 1845: 1821: 1653: 1501: 1335: 1027: 829: 775: 688: 559: 44: 5083: 4293: 2355:
Common in the Early Maastrichtian. Also found in the Schrader Bluff Formation.
2148:
Common in the Early Maastrichtian. Also found in the Schrader Bluff Formation.
956: 413:
in nearby rock. Large amounts of plants material are represented by peridonoid
4349: 4324: 1776: 1639: 1581: 1560: 1013: 545: 474: 443: 398: 89: 54: 5240: 5188: 5091: 5044: 5006:
Ryuji Takasaki, Anthony R. Fiorillo, Ronald S. Tykoski, Yoshitsugu Kobayashi.
4736: 4577:"The first juvenile dromaeosaurid (Dinosauria: Theropoda) from Arctic Alaska" 4546: 4358: 279: 266: 240: 227: 1412: 817: 367: 366:. The youngest part of the formation is Ocean Point, which extends into the 363: 198: 184: 151:
Kikak-Tegoseak Quarry, Kogosukruk Tongue, Ocean Point, Coleville River Bluff
94: 38: 5285: 5109: 4937: 4754: 4620: 4366: 4112: 5324: 4161: 4140: 3971: 4896: 4071: 1549: 1525: 1468: 1283: 800: 593: 470: 414: 402: 375: 188: 84: 79: 64: 59: 49: 839: 4145:
from the North Slope (Prince Creek Formation: Maastrichtian) of Alaska"
1646: 1020: 943: 939: 796: 552: 99: 74: 1380: 447: 410: 406: 371: 342: 307: 4985: 1612: 986: 518: 5280:. Vol. 97. Society for Sedimentary Geology. pp. 233–264. 5268:
Unpublished Ph.D. Dissertations, the University of Alaska-Fairbanks
1687: 1617: 1158:
An abundance of skeletal remains, including an immature juvenile.
991: 926:
Dental remains, including teeth. Braincases have also been found.
523: 463: 455: 433: 422: 418: 385: 202: 1320:
The first confirmed lambeosaurine in the Prince Creek Formation.
482:, and would have likely experienced 120 days of winter darkness. 459: 451: 430: 426: 4882:
Fiorillo, A.R.; Tykoski, R.S. (2013). Farke, Andrew A. (ed.).
5132:
1992 Proceedings, International Conference on Arctic Margins
1355:
A single "hypsilophodontid" cheek tooth not attributable to
4877: 4875: 4873: 4871: 4428:
10.1671/0272-4634(2000)020[0675:ttftpc]2.0.co;2
4325:"Nesting at extreme polar latitudes by non-avian dinosaurs" 4206:
10.1666/0022-3360(2005)079[0997:tfpdft]2.0.co;2
950:. The most abundant theropod. As of 2011, a dubious genus. 5025:
Lambe, 1917 clarifies issues in ontogeny and biogeography"
5157:"A new tiny eutherian from the Late Cretaceous of Alaska" 4773:
New Mexico Museum of Natural History and Science Bulletin
4249:
10.1130/0091-7613(1985)13<770:ETMFFN>2.0.CO;2
795:
One partial skull including a bone near the front of the
4067:"A Diminutive New Tyrannosaur from the Top of the World" 122:
General location of the Prince Creek Formation, in red
5021:"Craniomandibular anatomy of a juvenile specimen of 3958:
Flaig, P.P.; McCarthy, P.J.; Fiorillo, A.R. (2013).
5125: 5123: 5121: 5119: 313: 295: 256: 217: 212: 194: 180: 175: 165: 155: 147: 137: 127: 21: 5416:Fossiliferous stratigraphic units of North America 752:A new species of dromaeosaurid closely related to 462:. Concluded on the large amounts of dinosaurs and 938:are approximately 50% larger than specimens from 473:lacking ground ice with dinosaurs dominating and 4570: 4568: 4566: 4564: 4766: 4764: 4469: 4467: 4465: 4463: 4141:"A new species of the centrosaurine ceratopsid 3953: 3951: 3949: 4453: 4451: 4449: 4447: 4445: 4959: 4957: 4955: 4953: 4951: 4949: 4947: 8: 4634: 4632: 4630: 3918:Also found in the Schrader Bluff Formation. 3882:Also found in the Schrader Bluff Formation. 3846:Also found in the Schrader Bluff Formation. 3811:Also found in the Schrader Bluff Formation. 3784:Also found in the Schrader Bluff Formation. 3748:Also found in the Schrader Bluff Formation. 3686:Also found in the Schrader Bluff Formation. 3659:Also found in the Schrader Bluff Formation. 3632:Also found in the Schrader Bluff Formation. 3605:Also found in the Schrader Bluff Formation. 3570:Also found in the Schrader Bluff Formation. 3534:Also found in the Schrader Bluff Formation. 3462:Also found in the Schrader Bluff Formation. 3425:Also found in the Schrader Bluff Formation. 3390:Also found in the Schrader Bluff Formation. 3354:Also found in the Schrader Bluff Formation. 3327:Also found in the Schrader Bluff Formation. 3300:Also found in the Schrader Bluff Formation. 3264:Also found in the Schrader Bluff Formation. 3229:Also found in the Schrader Bluff Formation. 3193:Also found in the Schrader Bluff Formation. 3157:Also found in the Schrader Bluff Formation. 3121:Also found in the Schrader Bluff Formation. 3083:Also found in the Schrader Bluff Formation. 3046:Also found in the Schrader Bluff Formation. 2975:Also found in the Schrader Bluff Formation. 2939:Also found in the Schrader Bluff Formation. 2904:Also found in the Schrader Bluff Formation. 2868:Also found in the Schrader Bluff Formation. 2833:Also found in the Schrader Bluff Formation. 2798:Also found in the Schrader Bluff Formation. 2762:Also found in the Schrader Bluff Formation. 2727:Also found in the Schrader Bluff Formation. 2701:Also found in the Schrader Bluff Formation. 2666:Also found in the Schrader Bluff Formation. 2631:Also found in the Schrader Bluff Formation. 2596:Also found in the Schrader Bluff Formation. 2560:Also found in the Schrader Bluff Formation. 2524:Also found in the Schrader Bluff Formation. 2488:Also found in the Schrader Bluff Formation. 2453:Also found in the Schrader Bluff Formation. 2390:Also found in the Schrader Bluff Formation. 2319:Also found in the Schrader Bluff Formation. 2290:Also found in the Schrader Bluff Formation. 2255:Also found in the Schrader Bluff Formation. 2219:Also found in the Schrader Bluff Formation. 2184:Also found in the Schrader Bluff Formation. 2113:Also found in the Schrader Bluff Formation. 2087:Also found in the Schrader Bluff Formation. 2061:Also found in the Schrader Bluff Formation. 2034:Also found in the Schrader Bluff Formation. 1998:Also found in the Schrader Bluff Formation. 1962:Also found in the Schrader Bluff Formation. 1925:Also found in the Schrader Bluff Formation. 1273:Disassociated parts from multiple juveniles 4134: 4132: 4130: 4128: 4126: 4124: 4122: 1278:Originally identified as a distinct genus ( 4820: 4818: 4816: 4814: 4812: 4810: 4808: 4806: 1515:Most common in the Prince Creek Formation 1236:Remains of adult and juvenile individuals 466:, the Prince Creek Formation was likely a 116: 18: 5396:Sandstone formations of the United States 5099: 4927: 4917: 4804: 4802: 4800: 4798: 4796: 4794: 4792: 4790: 4788: 4786: 4744: 4726: 4610: 4600: 4348: 4301:U.S. Geological Survey Professional Paper 4160: 4102: 4092: 4402: 4400: 4398: 4396: 4260: 4258: 4139:Fiorillo, A.R.; Tykoski, R.S.T. (2012). 4049: 3934:List of dinosaur-bearing rock formations 1685: 1682: 1376: 1059: 1056: 591: 588: 4394: 4392: 4390: 4388: 4386: 4384: 4382: 4380: 4378: 4376: 4176: 4174: 4172: 4047: 4045: 4043: 4041: 4039: 4037: 4035: 4033: 4031: 4029: 3962:. In Driese, S.G.; Nordt, L.C. (eds.). 3945: 1112:A squamosal, and the back of the dome. 393:of the Liscomb Bonebed in their habitat 4857: 4847: 3997: 3987: 946:. Remains were previously assigned to 5014: 5012: 4999: 4997: 4995: 4508: 4506: 3116:Specimens of preserved pollen spores 7: 5376:Maastrichtian Stage of North America 4318: 4316: 4314: 5213:Journal of Systematic Palaeontology 5161:Journal of Systematic Palaeontology 5130:Thurston, D.K.; Fujita, K. (1994). 4477:Journal of Systematic Palaeontology 3966:. Vol. 104. pp. 179–230. 1669:Uncertain or tentative taxa are in 1043:Uncertain or tentative taxa are in 747:Small dentary tip from a juvenile. 575:Uncertain or tentative taxa are in 5029:Journal of Vertebrate Paleontology 4966:Canadian Journal of Earth Sciences 4660:Journal of Vertebrate Paleontology 4519:Journal of Vertebrate Paleontology 4416:Journal of Vertebrate Paleontology 14: 1629:Taxon falsely reported as present 1207:Remains previously attributed to 1003:Taxon falsely reported as present 535:Taxon falsely reported as present 3467: 1324: 1295: 1282:), recent studies have found it 1216: 1176: 1126: 955: 882: 838: 763: 742:Pediomys Point - Liscomb Quarry 661: 345:with strata dating to the Early 318: 300: 1634:Dubious taxon or junior synonym 1008:Dubious taxon or junior synonym 540:Dubious taxon or junior synonym 4680:10.1080/02724634.2009.10010370 1383:of the Prince Creek Formation 697:Footprints from a small bird. 1: 5381:Cretaceous–Paleogene boundary 5361:Geologic formations of Alaska 5233:10.1080/14772019.2018.1560369 5181:10.1080/14772019.2023.2232359 5037:10.1080/02724634.2024.2326644 4149:Acta Palaeontologica Polonica 1690:of the Prince Creek Formation 1064:of the Prince Creek Formation 4919:10.1371/journal.pone.0065802 4728:10.1371/journal.pone.0024487 4602:10.1371/journal.pone.0235078 4539:10.1080/02724634.2013.770750 4497:10.1080/14772019.2010.509356 4094:10.1371/journal.pone.0091287 3493:Bissacate gymnosperm pollen 258:Approximate paleocoordinates 3041:Samples of distinct pollen 2899:Samples of distinct pollen 2863:Samples of distinct pollen 2828:Samples of distinct pollen 2793:Samples of distinct pollen 2757:Samples of distinct pollen 2722:Samples of distinct pollen 2696:Samples of distinct pollen 2661:Samples of distinct pollen 2626:Samples of distinct pollen 2591:Samples of distinct pollen 1596: 970: 732:Saurornitholestinae indet. 502: 401:phase. The rocks in it are 5437: 5084:10.1038/s41598-019-41325-8 4886:Pachyrhinosaurus perotorum 4842:Geologic Studies in Alaska 3836:Coleville River Formation 3380:Coleville Bluff Formation 1169:Pachyrhinosaurus perotorum 4350:10.1016/j.cub.2021.05.041 3755: 3577: 3349:Fossilized pollen spores 3271: 3152:Preserved pollen samples 3006:Preserved pollen samples 2673: 2397: 2005: 1603: 1599: 1379: 977: 973: 509: 505: 439:Wodehouseia edmontonicola 362:years ago, in the latest 115: 26: 3295:Distinct pollen remains 1885:Schrader Bluff Formation 1601: 1121:from Alaska discovered. 975: 507: 170:Schrader Bluff Formation 4194:Journal of Paleontology 1811:An aquatic angiosperm. 1397:Stratigraphic position 1286:indistinguishable from 160:Sagavanirktok Formation 5421:Paleontology in Alaska 5286:10.2110/sepmsp.097.233 3908:Coleville River Bluff 3872:Coleville River Bluff 3801:Coleville River Bluff 3774:Coleville River Bluff 3738:Coleville River Bluff 3702:Coleville River Bluff 3676:Coleville River Bluff 3649:Coleville River Bluff 3622:Coleville River Bluff 3595:Coleville River Bluff 3560:Coleville River Bluff 3524:Coleville River Bluff 3488:Coleville River Bluff 3452:Coleville River Bluff 3415:Coleville River Bluff 3344:Coleville River Bluff 3317:Coleville River Bluff 3290:Coleville River Bluff 3254:Coleville River Bluff 3219:Coleville River Bluff 3183:Coleville River Bluff 3147:Coleville River Bluff 3111:Coleville River Bluff 3073:Coleville River Bluff 3036:Coleville River Bluff 3001:Coleville River Bluff 2965:Coleville River Bluff 2929:Coleville River Bluff 2894:Coleville River Bluff 2858:Coleville River Bluff 2823:Coleville River Bluff 2788:Coleville River Bluff 2752:Coleville River Bluff 2717:Coleville River Bluff 2691:Coleville River Bluff 2656:Coleville River Bluff 2621:Coleville River Bluff 2586:Coleville River Bluff 2550:Coleville River Bluff 2514:Coleville River Bluff 2478:Coleville River Bluff 2443:Coleville River Bluff 2416:Coleville River Bluff 2380:Coleville River Bluff 2345:Coleville River Bluff 2314:Septate fungal hypha. 2309:Coleville River Bluff 2280:Coleville River Bluff 2245:Coleville River Bluff 2209:Coleville River Bluff 2174:Coleville River Bluff 2138:Coleville River Bluff 2103:Coleville River Bluff 2077:Coleville River Bluff 2051:Coleville River Bluff 2024:Coleville River Bluff 1988:Coleville River Bluff 1952:Coleville River Bluff 1915:Coleville River Bluff 1873:Coleville River Bluff 1677:taxa are discredited. 1268:Kikak-Tegoseak Quarry 1153:Kikak-Tegoseak Quarry 1051:taxa are discredited. 912:Kikak-Tegoseak Quarry 790:Kikak-Tegoseak Quarry 641:Kikak-Tegoseak Quarry 583:taxa are discredited. 394: 374:, based on the age of 335:Prince Creek Formation 22:Prince Creek Formation 5325:10.2110/palo.2013.133 5023:Edmontosaurus regalis 4162:10.4202/app.2011.0033 3972:10.2110/sepmsp.104.14 3529:Pollen spore remains 1937:Polycingulatisporites 1779:, known from leaves. 799:and the front of the 717:Distal metatarsal IV 486:Vertebrate paleofauna 389: 4335:(16): 3469–3478.e5. 3095:Converrucosisporites 1574:Lower Maastrichtian 1512:Lower Maastrichtian 1489:Lower Maastrichtian 1461:Lower Maastrichtian 1429:Lower Maastrichtian 1163:The youngest of the 921:Magical Mystery Bar 370:, at the end of the 132:Geological formation 16:Geological formation 5401:Mudstone formations 5317:2014Palai..29..594F 5225:2019JSPal..17.1805E 5173:2023JSPal..2132359E 5076:2019NatSR...9.5384T 4978:2011CaJES..48.1342B 4910:2013PLoSO...865802F 4834:Hamilton, Thomas D. 4719:2011PLoSO...624487Z 4672:2009JVPal..29..178F 4593:2020PLoSO..1535078C 4531:2013JVPal..33.1169W 4489:2011JSPal...9...33F 4341:2021CBio...31E3469D 4241:1985Geo....13..770M 4085:2014PLoSO...991287F 3275:Cicatricosisporites 2923:E. procumbentformis 1119:pachycephalosaurine 815:closely related to 276: /  237: /  28:Stratigraphic range 5064:Scientific Reports 3565:Carbonized pollen 3401:Camarozonosporites 2203:M. pseudosenonicus 1883:Also found in the 1859:Pulcheripollenites 1837:Kogosukruk Tongue 1804:Kogosukruk Tongue 1765:Kogosukruk Tongue 1733:Kogosukruk Tongue 1624:Reclassified taxon 1577:Over 60 specimens 1107:Kogosukruk Tongue 998:Reclassified taxon 530:Reclassified taxon 450:, and pollen from 395: 203:carbonaceous shale 5366:Cretaceous Alaska 5219:(21): 1805–1824. 4844:. pp. 47–48. 4838:Galloway, John P. 4274:Houseknecht, D.W. 3925: 3924: 3420:Pollen specimens 3322:Preserved pollen 2950:Dictyophyllidites 2401:Laegivatosporites 1681: 1680: 1672: 1660: 1659: 1656: 1649: 1642: 1635: 1630: 1625: 1620: 1590: 1589: 1370: 1369: 1317:A supraoccipital 1227:Leptoceratopsidae 1055: 1054: 1046: 1034: 1033: 1030: 1023: 1016: 1009: 1004: 999: 994: 964: 963: 851:Saurornitholestes 755:Saurornitholestes 706:Ornithomimosauria 649:Fossilized teeth 632:D. cf albertensis 587: 586: 578: 566: 565: 562: 555: 548: 541: 536: 531: 526: 331: 330: 5428: 5411:Fluvial deposits 5406:Deltaic deposits 5386:Paleogene Alaska 5336: 5299: 5271: 5253: 5252: 5207: 5201: 5200: 5152: 5146: 5145: 5127: 5114: 5113: 5103: 5055: 5049: 5048: 5016: 5007: 5001: 4990: 4989: 4972:(9): 1342–1354. 4961: 4942: 4941: 4931: 4921: 4890:Pachyrhinosaurus 4879: 4866: 4865: 4859: 4855: 4853: 4845: 4822: 4781: 4780: 4768: 4759: 4758: 4748: 4730: 4698: 4692: 4691: 4636: 4625: 4624: 4614: 4604: 4572: 4559: 4558: 4525:(5): 1169–1175. 4510: 4501: 4500: 4471: 4458: 4455: 4440: 4439: 4404: 4371: 4370: 4352: 4320: 4309: 4308: 4298: 4282:Brizzolara, D.W. 4262: 4253: 4252: 4224: 4218: 4217: 4178: 4167: 4166: 4164: 4143:Pachyrhinosaurus 4136: 4117: 4116: 4106: 4096: 4051: 4024: 4012: 4006: 4005: 3999: 3995: 3993: 3985: 3955: 3581:Aquilapollenites 3471: 2685:H. scollardensis 2650:I. marylandensis 2230:Lycopodiacidites 1683: 1670: 1652: 1645: 1638: 1633: 1628: 1623: 1616: 1613: 1597: 1543:Upper Campanian 1479:Multituberculata 1437:multituberculate 1377: 1328: 1314:Liscomb Bonebed 1299: 1220: 1188:Thescelosaurinae 1180: 1165:Pachyrhinosaurus 1139:Pachyrhinosaurus 1130: 1057: 1044: 1026: 1019: 1012: 1007: 1002: 997: 990: 987: 971: 959: 886: 859:S. cf. langstoni 842: 767: 665: 589: 576: 558: 551: 544: 539: 534: 529: 522: 519: 503: 337:is a geological 324: 322: 321: 306: 304: 303: 291: 290: 288: 287: 286: 281: 277: 274: 273: 272: 269: 252: 251: 249: 248: 247: 242: 238: 235: 234: 233: 230: 120: 111: 41: 19: 5436: 5435: 5431: 5430: 5429: 5427: 5426: 5425: 5371:Campanian Stage 5351: 5350: 5311:(11): 594–611. 5302: 5296: 5274: 5265: 5262: 5257: 5256: 5209: 5208: 5204: 5154: 5153: 5149: 5142: 5129: 5128: 5117: 5057: 5056: 5052: 5018: 5017: 5010: 5002: 4993: 4986:10.1139/e11-017 4963: 4962: 4945: 4881: 4880: 4869: 4856: 4846: 4824: 4823: 4784: 4770: 4769: 4762: 4700: 4699: 4695: 4638: 4637: 4628: 4587:(7): e0235078. 4574: 4573: 4562: 4512: 4511: 4504: 4473: 4472: 4461: 4456: 4443: 4406: 4405: 4374: 4329:Current Biology 4322: 4321: 4312: 4296: 4290:Takahashi, K.I. 4264: 4263: 4256: 4226: 4225: 4221: 4200:(5): 997–1001. 4180: 4179: 4170: 4138: 4137: 4120: 4055:Fiorillo, A. R. 4053: 4052: 4027: 4013: 4009: 3996: 3986: 3982: 3957: 3956: 3947: 3942: 3930: 3857:Aequitriradites 3759:Anacololsidites 3696:A. amygdaloides 3259:Pollen samples 3224:Pollen remains 3188:Pollen samples 3132:Clavatisporites 3078:Pollen samples 2970:Pollen remains 2915:Erdtmannipollis 2738:Gleicheniidites 2555:Pollen remains 2519:Pollen remains 2483:Pollen remains 2472:K. trispissatus 2448:Pollen remains 2421:Pollen remains 2385:Pollen remains 2350:Pollen remains 2285:Pollen remains 2250:Pollen remains 2214:Pollen remains 2179:Pollen remains 2159:Mantonisporites 2143:Pollen remains 1668: 1611: 1595: 1571:Pediomys Point 1492:Isolated teeth 1464:Isolated teeth 1432:Isolated teeth 1375: 1284:ontogenetically 1267: 1266:Liscomb Bonebed 1042: 985: 969: 915:Liscomb Quarry 865:Old Bone Beach 714:Old Bone Beach 682:G. vegrandiunis 638:Liscomb Quarry 574: 517: 498: 493: 488: 436:, projectates, 384: 359: 351:Late Cretaceous 319: 317: 301: 299: 284: 282: 278: 275: 270: 267: 265: 263: 262: 245: 243: 239: 236: 231: 228: 226: 224: 223: 123: 110: 109: 108: 107: 102: 97: 92: 87: 82: 77: 72: 67: 62: 57: 52: 47: 37:70.6–69.1  36: 35: 34: 17: 12: 11: 5: 5434: 5432: 5424: 5423: 5418: 5413: 5408: 5403: 5398: 5393: 5388: 5383: 5378: 5373: 5368: 5363: 5353: 5352: 5349: 5348: 5337: 5300: 5294: 5272: 5261: 5258: 5255: 5254: 5202: 5147: 5141:978-1125448038 5140: 5115: 5050: 5008: 4991: 4943: 4867: 4858:|journal= 4782: 4760: 4693: 4666:(1): 178–187. 4652:Mccarthy, P.J. 4640:Fiorillo, A.R. 4626: 4560: 4502: 4459: 4441: 4422:(4): 675–682. 4412:Gangloff, R.A. 4408:Fiorillo, A.R. 4372: 4310: 4278:Stricker, G.D. 4254: 4219: 4186:Fiorillo, A.R. 4182:Gangloff, R.A. 4168: 4155:(3): 561–573. 4118: 4059:Tykoski, R. S. 4025: 4007: 3998:|journal= 3980: 3944: 3943: 3941: 3938: 3937: 3936: 3929: 3926: 3923: 3922: 3920: 3915: 3910: 3905: 3897: 3893:Aequitriradite 3887: 3886: 3884: 3879: 3874: 3869: 3861: 3851: 3850: 3848: 3843: 3838: 3833: 3826: 3816: 3815: 3813: 3808: 3803: 3798: 3789: 3788: 3786: 3781: 3776: 3771: 3763: 3753: 3752: 3750: 3745: 3740: 3735: 3727: 3717: 3716: 3714: 3709: 3704: 3699: 3691: 3690: 3688: 3683: 3678: 3673: 3664: 3663: 3661: 3656: 3651: 3646: 3637: 3636: 3634: 3629: 3624: 3619: 3610: 3609: 3607: 3602: 3597: 3592: 3585: 3575: 3574: 3572: 3567: 3562: 3557: 3549: 3539: 3538: 3536: 3531: 3526: 3521: 3513: 3509:Balmeisporites 3503: 3502: 3500: 3495: 3490: 3485: 3483:Indeterminate 3480: 3478:Indeterminate 3474: 3473: 3464: 3459: 3454: 3449: 3440: 3430: 3429: 3427: 3422: 3417: 3412: 3405: 3395: 3394: 3392: 3387: 3385:Pollen spores 3382: 3377: 3369: 3359: 3358: 3356: 3351: 3346: 3341: 3332: 3331: 3329: 3324: 3319: 3314: 3305: 3304: 3302: 3297: 3292: 3287: 3279: 3269: 3268: 3266: 3261: 3256: 3251: 3244: 3240:Cingulizonates 3234: 3233: 3231: 3226: 3221: 3216: 3208: 3198: 3197: 3195: 3190: 3185: 3180: 3172: 3162: 3161: 3159: 3154: 3149: 3144: 3136: 3126: 3125: 3123: 3118: 3113: 3108: 3099: 3088: 3087: 3085: 3080: 3075: 3070: 3062: 3051: 3050: 3048: 3043: 3038: 3033: 3026: 3016: 3015: 3013: 3008: 3003: 2998: 2990: 2980: 2979: 2977: 2972: 2967: 2962: 2954: 2944: 2943: 2941: 2936: 2934:Pollen spores 2931: 2926: 2919: 2909: 2908: 2906: 2901: 2896: 2891: 2883: 2879:Expressipollis 2873: 2872: 2870: 2865: 2860: 2855: 2848: 2838: 2837: 2835: 2830: 2825: 2820: 2813: 2809:Foraminisporis 2803: 2802: 2800: 2795: 2790: 2785: 2777: 2767: 2766: 2764: 2759: 2754: 2749: 2742: 2732: 2731: 2729: 2724: 2719: 2714: 2706: 2705: 2703: 2698: 2693: 2688: 2681: 2671: 2670: 2668: 2663: 2658: 2653: 2646: 2642:Impardecispora 2636: 2635: 2633: 2628: 2623: 2618: 2611: 2607:Inundatisporis 2601: 2600: 2598: 2593: 2588: 2583: 2575: 2571:Ischyosporites 2565: 2564: 2562: 2557: 2552: 2547: 2539: 2535:Ischyosporites 2529: 2528: 2526: 2521: 2516: 2511: 2503: 2493: 2492: 2490: 2485: 2480: 2475: 2468: 2458: 2457: 2455: 2450: 2445: 2440: 2431: 2430: 2428: 2423: 2418: 2413: 2405: 2395: 2394: 2392: 2387: 2382: 2377: 2370: 2360: 2359: 2357: 2352: 2347: 2342: 2334: 2324: 2323: 2321: 2316: 2311: 2306: 2304:Indeterminate 2301: 2299:Indeterminate 2295: 2294: 2292: 2287: 2282: 2277: 2270: 2260: 2259: 2257: 2252: 2247: 2242: 2234: 2224: 2223: 2221: 2216: 2211: 2206: 2199: 2189: 2188: 2186: 2181: 2176: 2171: 2163: 2153: 2152: 2150: 2145: 2140: 2135: 2128: 2124:Osmundacidites 2118: 2117: 2115: 2110: 2108:Pollen spores 2105: 2100: 2092: 2091: 2089: 2084: 2082:Pollen spores 2079: 2074: 2066: 2065: 2063: 2058: 2056:Pollen spores 2053: 2048: 2039: 2038: 2036: 2031: 2029:Pollen spores 2026: 2021: 2013: 2003: 2002: 2000: 1995: 1993:Pollen spores 1990: 1985: 1977: 1973:Podocarpidites 1967: 1966: 1964: 1959: 1957:Pollen spores 1954: 1949: 1941: 1930: 1929: 1927: 1922: 1920:Pollen spores 1917: 1912: 1903: 1892: 1891: 1889: 1880: 1878:Pollen spores 1875: 1870: 1863: 1853: 1852: 1850: 1841: 1839: 1834: 1826: 1816: 1815: 1813: 1808: 1806: 1801: 1794: 1784: 1783: 1781: 1772: 1767: 1762: 1759:H. quercifolia 1755: 1745: 1744: 1742: 1737: 1735: 1730: 1723: 1713: 1712: 1709: 1706: 1703: 1700: 1697: 1693: 1692: 1679: 1678: 1663: 1661: 1658: 1657: 1650: 1643: 1636: 1631: 1626: 1621: 1605: 1604: 1602: 1600: 1594: 1591: 1588: 1587: 1585: 1578: 1575: 1572: 1569: 1564: 1556: 1555: 1553: 1546: 1544: 1541: 1538:Colville River 1534: 1529: 1521: 1520: 1518: 1516: 1513: 1510: 1508: 1507:Indeterminate 1505: 1498: 1497: 1495: 1493: 1490: 1487: 1485: 1484:Indeterminate 1482: 1475: 1474: 1472: 1465: 1462: 1459: 1457: 1451: 1443: 1442: 1440: 1433: 1430: 1427: 1425: 1416: 1408: 1407: 1404: 1401: 1398: 1395: 1392: 1389: 1385: 1384: 1374: 1371: 1368: 1367: 1365: 1361:Thescelosaurus 1352: 1347: 1345: 1343:Indeterminate 1340: 1331: 1330: 1321: 1318: 1315: 1312: 1311:Indeterminate 1309: 1306:Lambeosaurinae 1302: 1301: 1292: 1275: 1270: 1263: 1252: 1242: 1241: 1239: 1237: 1234: 1232: 1231:Indeterminate 1229: 1223: 1222: 1213: 1209:Thescelosaurus 1204: 1199: 1197: 1195:Indeterminate 1192: 1183: 1182: 1173: 1160: 1155: 1150: 1143: 1133: 1132: 1123: 1114: 1109: 1104: 1097: 1087: 1086: 1083: 1080: 1077: 1074: 1071: 1067: 1066: 1062:Ornithischians 1053: 1052: 1037: 1035: 1032: 1031: 1024: 1017: 1010: 1005: 1000: 995: 979: 978: 976: 974: 968: 967:Ornithischians 965: 962: 961: 952: 928: 923: 909: 899: 889: 888: 879: 872: 867: 862: 855: 845: 844: 835: 805: 792: 787: 780: 770: 769: 760: 749: 744: 739: 737:Indeterminate 734: 728: 727: 725: 718: 715: 712: 711:Indeterminate 709: 702: 701: 699: 694: 692: 685: 678: 668: 667: 658: 651: 646: 635: 628: 618: 617: 614: 611: 608: 605: 602: 598: 597: 585: 584: 569: 567: 564: 563: 556: 549: 542: 537: 532: 527: 511: 510: 508: 506: 497: 494: 492: 489: 487: 484: 383: 380: 358: 355: 329: 328: 315: 311: 310: 297: 293: 292: 280:83.2°N 115.9°W 260: 254: 253: 241:70.0°N 151.5°W 221: 215: 214: 210: 209: 196: 192: 191: 182: 178: 177: 173: 172: 167: 163: 162: 157: 153: 152: 149: 145: 144: 142:Colville Group 139: 135: 134: 129: 125: 124: 121: 113: 112: 105: 104: 103: 98: 93: 88: 83: 78: 73: 68: 63: 58: 53: 48: 43: 42: 24: 23: 15: 13: 10: 9: 6: 4: 3: 2: 5433: 5422: 5419: 5417: 5414: 5412: 5409: 5407: 5404: 5402: 5399: 5397: 5394: 5392: 5389: 5387: 5384: 5382: 5379: 5377: 5374: 5372: 5369: 5367: 5364: 5362: 5359: 5358: 5356: 5346: 5345:0-520-24209-2 5342: 5338: 5334: 5330: 5326: 5322: 5318: 5314: 5310: 5306: 5301: 5297: 5295:9781565763074 5291: 5287: 5283: 5279: 5273: 5269: 5264: 5263: 5259: 5250: 5246: 5242: 5238: 5234: 5230: 5226: 5222: 5218: 5214: 5206: 5203: 5198: 5194: 5190: 5186: 5182: 5178: 5174: 5170: 5166: 5162: 5158: 5151: 5148: 5143: 5137: 5133: 5126: 5124: 5122: 5120: 5116: 5111: 5107: 5102: 5097: 5093: 5089: 5085: 5081: 5077: 5073: 5069: 5065: 5061: 5054: 5051: 5046: 5042: 5038: 5034: 5030: 5026: 5024: 5015: 5013: 5009: 5005: 5000: 4998: 4996: 4992: 4987: 4983: 4979: 4975: 4971: 4967: 4960: 4958: 4956: 4954: 4952: 4950: 4948: 4944: 4939: 4935: 4930: 4925: 4920: 4915: 4911: 4907: 4904:(6): e65802. 4903: 4899: 4898: 4893: 4891: 4887: 4884:"An Immature 4878: 4876: 4874: 4872: 4868: 4863: 4851: 4843: 4839: 4835: 4831: 4830:Parrish, J.T. 4827: 4821: 4819: 4817: 4815: 4813: 4811: 4809: 4807: 4805: 4803: 4801: 4799: 4797: 4795: 4793: 4791: 4789: 4787: 4783: 4778: 4774: 4767: 4765: 4761: 4756: 4752: 4747: 4742: 4738: 4734: 4729: 4724: 4720: 4716: 4713:(9): e24487. 4712: 4708: 4704: 4697: 4694: 4689: 4685: 4681: 4677: 4673: 4669: 4665: 4661: 4657: 4653: 4649: 4645: 4644:Tykoski, R.S. 4641: 4635: 4633: 4631: 4627: 4622: 4618: 4613: 4608: 4603: 4598: 4594: 4590: 4586: 4582: 4578: 4571: 4569: 4567: 4565: 4561: 4556: 4552: 4548: 4544: 4540: 4536: 4532: 4528: 4524: 4520: 4516: 4509: 4507: 4503: 4498: 4494: 4490: 4486: 4482: 4478: 4470: 4468: 4466: 4464: 4460: 4454: 4452: 4450: 4448: 4446: 4442: 4437: 4433: 4429: 4425: 4421: 4417: 4413: 4409: 4403: 4401: 4399: 4397: 4395: 4393: 4391: 4389: 4387: 4385: 4383: 4381: 4379: 4377: 4373: 4368: 4364: 4360: 4356: 4351: 4346: 4342: 4338: 4334: 4330: 4326: 4319: 4317: 4315: 4311: 4306: 4302: 4295: 4291: 4287: 4283: 4279: 4275: 4271: 4267: 4261: 4259: 4255: 4250: 4246: 4242: 4238: 4234: 4230: 4223: 4220: 4215: 4211: 4207: 4203: 4199: 4195: 4191: 4187: 4183: 4177: 4175: 4173: 4169: 4163: 4158: 4154: 4150: 4146: 4144: 4135: 4133: 4131: 4129: 4127: 4125: 4123: 4119: 4114: 4110: 4105: 4100: 4095: 4090: 4086: 4082: 4079:(3): e91287. 4078: 4074: 4073: 4068: 4064: 4063:Dodson, Peter 4060: 4056: 4050: 4048: 4046: 4044: 4042: 4040: 4038: 4036: 4034: 4032: 4030: 4026: 4022: 4021:0-520-24209-2 4018: 4011: 4008: 4003: 3991: 3983: 3981:9781565763227 3977: 3973: 3969: 3965: 3961: 3954: 3952: 3950: 3946: 3939: 3935: 3932: 3931: 3927: 3921: 3919: 3916: 3914: 3911: 3909: 3906: 3904: 3902: 3898: 3896: 3895: 3894: 3889: 3888: 3885: 3883: 3880: 3878: 3875: 3873: 3870: 3868: 3867: 3866:A. spinulosus 3862: 3860: 3859: 3858: 3853: 3852: 3849: 3847: 3844: 3842: 3839: 3837: 3834: 3832: 3831: 3827: 3825: 3824: 3823: 3818: 3817: 3814: 3812: 3809: 3807: 3804: 3802: 3799: 3797: 3795: 3791: 3790: 3787: 3785: 3782: 3780: 3777: 3775: 3772: 3770: 3768: 3764: 3762: 3761: 3760: 3754: 3751: 3749: 3746: 3744: 3741: 3739: 3736: 3734: 3732: 3728: 3726: 3725: 3724: 3719: 3718: 3715: 3713: 3710: 3708: 3705: 3703: 3700: 3698: 3697: 3693: 3692: 3689: 3687: 3684: 3682: 3679: 3677: 3674: 3672: 3671: 3666: 3665: 3662: 3660: 3657: 3655: 3652: 3650: 3647: 3645: 3643: 3639: 3638: 3635: 3633: 3630: 3628: 3625: 3623: 3620: 3618: 3616: 3612: 3611: 3608: 3606: 3603: 3601: 3598: 3596: 3593: 3591: 3590: 3586: 3584: 3583: 3582: 3576: 3573: 3571: 3568: 3566: 3563: 3561: 3558: 3556: 3555: 3550: 3548: 3547: 3546: 3541: 3540: 3537: 3535: 3532: 3530: 3527: 3525: 3522: 3520: 3518: 3514: 3512: 3511: 3510: 3505: 3504: 3501: 3499: 3496: 3494: 3491: 3489: 3486: 3484: 3481: 3479: 3476: 3475: 3472: 3470: 3465: 3463: 3460: 3458: 3455: 3453: 3450: 3448: 3447: 3446: 3441: 3439: 3438: 3437: 3432: 3431: 3428: 3426: 3423: 3421: 3418: 3416: 3413: 3411: 3410: 3406: 3404: 3403: 3402: 3397: 3396: 3393: 3391: 3388: 3386: 3383: 3381: 3378: 3376: 3374: 3370: 3368: 3367: 3366: 3365:Cibotiumspora 3361: 3360: 3357: 3355: 3352: 3350: 3347: 3345: 3342: 3340: 3339: 3338:C. dorogensis 3334: 3333: 3330: 3328: 3325: 3323: 3320: 3318: 3315: 3313: 3311: 3307: 3306: 3303: 3301: 3298: 3296: 3293: 3291: 3288: 3286: 3284: 3280: 3278: 3277: 3276: 3270: 3267: 3265: 3262: 3260: 3257: 3255: 3252: 3250: 3249: 3245: 3243: 3242: 3241: 3236: 3235: 3232: 3230: 3227: 3225: 3222: 3220: 3217: 3215: 3214: 3209: 3207: 3206: 3205: 3204:Cingutriletes 3200: 3199: 3196: 3194: 3191: 3189: 3186: 3184: 3181: 3179: 3177: 3173: 3171: 3170: 3169: 3168:Circulodinium 3164: 3163: 3160: 3158: 3155: 3153: 3150: 3148: 3145: 3143: 3141: 3137: 3135: 3134: 3133: 3128: 3127: 3124: 3122: 3119: 3117: 3114: 3112: 3109: 3107: 3105: 3100: 3098: 3097: 3096: 3090: 3089: 3086: 3084: 3081: 3079: 3076: 3074: 3071: 3069: 3068: 3067:C. apisulacea 3063: 3061: 3059: 3058: 3053: 3052: 3049: 3047: 3044: 3042: 3039: 3037: 3034: 3032: 3031: 3027: 3025: 3024: 3023: 3018: 3017: 3014: 3012: 3009: 3007: 3004: 3002: 2999: 2997: 2995: 2991: 2989: 2988: 2987: 2986:Deltoidospora 2982: 2981: 2978: 2976: 2973: 2971: 2968: 2966: 2963: 2961: 2959: 2955: 2953: 2952: 2951: 2946: 2945: 2942: 2940: 2937: 2935: 2932: 2930: 2927: 2925: 2924: 2920: 2918: 2917: 2916: 2911: 2910: 2907: 2905: 2902: 2900: 2897: 2895: 2892: 2890: 2889: 2884: 2882: 2881: 2880: 2875: 2874: 2871: 2869: 2866: 2864: 2861: 2859: 2856: 2854: 2853: 2849: 2847: 2846: 2845: 2840: 2839: 2836: 2834: 2831: 2829: 2826: 2824: 2821: 2819: 2818: 2814: 2812: 2811: 2810: 2805: 2804: 2801: 2799: 2796: 2794: 2791: 2789: 2786: 2784: 2782: 2778: 2776: 2775: 2774: 2773:Foveosporites 2769: 2768: 2765: 2763: 2760: 2758: 2755: 2753: 2750: 2748: 2747: 2743: 2741: 2740: 2739: 2734: 2733: 2730: 2728: 2725: 2723: 2720: 2718: 2715: 2713: 2712: 2708: 2707: 2704: 2702: 2699: 2697: 2694: 2692: 2689: 2687: 2686: 2682: 2680: 2679: 2678: 2672: 2669: 2667: 2664: 2662: 2659: 2657: 2654: 2652: 2651: 2647: 2645: 2644: 2643: 2638: 2637: 2634: 2632: 2629: 2627: 2624: 2622: 2619: 2617: 2616: 2612: 2610: 2609: 2608: 2603: 2602: 2599: 2597: 2594: 2592: 2589: 2587: 2584: 2582: 2580: 2576: 2574: 2573: 2572: 2567: 2566: 2563: 2561: 2558: 2556: 2553: 2551: 2548: 2546: 2544: 2540: 2538: 2537: 2536: 2531: 2530: 2527: 2525: 2522: 2520: 2517: 2515: 2512: 2510: 2508: 2504: 2502: 2501: 2500: 2499:Integricorpus 2495: 2494: 2491: 2489: 2486: 2484: 2481: 2479: 2476: 2474: 2473: 2469: 2467: 2466: 2465: 2460: 2459: 2456: 2454: 2451: 2449: 2446: 2444: 2441: 2439: 2437: 2433: 2432: 2429: 2427: 2424: 2422: 2419: 2417: 2414: 2412: 2410: 2406: 2404: 2403: 2402: 2396: 2393: 2391: 2388: 2386: 2383: 2381: 2378: 2376: 2375: 2371: 2369: 2368: 2367: 2366:Lairidordites 2362: 2361: 2358: 2356: 2353: 2351: 2348: 2346: 2343: 2341: 2339: 2335: 2333: 2332: 2331: 2330:Leosphaeridia 2326: 2325: 2322: 2320: 2317: 2315: 2312: 2310: 2307: 2305: 2302: 2300: 2297: 2296: 2293: 2291: 2288: 2286: 2283: 2281: 2278: 2276: 2275: 2274:L. dissolutum 2271: 2269: 2268: 2267: 2262: 2261: 2258: 2256: 2253: 2251: 2248: 2246: 2243: 2241: 2239: 2235: 2233: 2232: 2231: 2226: 2225: 2222: 2220: 2217: 2215: 2212: 2210: 2207: 2205: 2204: 2200: 2198: 2197: 2196: 2191: 2190: 2187: 2185: 2182: 2180: 2177: 2175: 2172: 2170: 2168: 2164: 2162: 2161: 2160: 2155: 2154: 2151: 2149: 2146: 2144: 2141: 2139: 2136: 2134: 2133: 2129: 2127: 2126: 2125: 2120: 2119: 2116: 2114: 2111: 2109: 2106: 2104: 2101: 2099: 2098: 2094: 2093: 2090: 2088: 2085: 2083: 2080: 2078: 2075: 2073: 2072: 2068: 2067: 2064: 2062: 2059: 2057: 2054: 2052: 2049: 2047: 2045: 2041: 2040: 2037: 2035: 2032: 2030: 2027: 2025: 2022: 2020: 2018: 2014: 2012: 2011: 2010: 2004: 2001: 1999: 1996: 1994: 1991: 1989: 1986: 1984: 1982: 1978: 1976: 1975: 1974: 1969: 1968: 1965: 1963: 1960: 1958: 1955: 1953: 1950: 1948: 1947: 1942: 1940: 1939: 1938: 1932: 1931: 1928: 1926: 1923: 1921: 1918: 1916: 1913: 1911: 1909: 1904: 1902: 1901: 1900: 1899:Proteacidites 1894: 1893: 1890: 1888: 1886: 1881: 1879: 1876: 1874: 1871: 1869: 1868: 1864: 1862: 1861: 1860: 1855: 1854: 1851: 1849: 1847: 1842: 1840: 1838: 1835: 1833: 1831: 1827: 1825: 1824: 1823: 1818: 1817: 1814: 1812: 1809: 1807: 1805: 1802: 1800: 1799: 1795: 1793: 1792: 1791: 1786: 1785: 1782: 1780: 1778: 1773: 1771: 1768: 1766: 1763: 1761: 1760: 1756: 1754: 1753: 1752: 1747: 1746: 1743: 1741: 1738: 1736: 1734: 1731: 1729: 1728: 1724: 1722: 1721: 1720: 1715: 1714: 1710: 1707: 1704: 1701: 1698: 1695: 1694: 1691: 1689: 1684: 1676: 1667: 1664: 1662: 1655: 1651: 1648: 1644: 1641: 1637: 1632: 1627: 1622: 1619: 1615: 1614: 1610: 1607: 1606: 1598: 1592: 1586: 1583: 1579: 1576: 1573: 1570: 1568: 1567:U. hutchisoni 1565: 1563: 1562: 1558: 1557: 1554: 1551: 1547: 1545: 1542: 1539: 1535: 1533: 1530: 1528: 1527: 1523: 1522: 1519: 1517: 1514: 1511: 1509: 1506: 1503: 1500: 1499: 1496: 1494: 1491: 1488: 1486: 1483: 1480: 1477: 1476: 1473: 1470: 1466: 1463: 1460: 1458: 1455: 1452: 1450: 1449: 1445: 1444: 1441: 1438: 1434: 1431: 1428: 1426: 1424: 1420: 1417: 1415: 1414: 1410: 1409: 1405: 1402: 1399: 1396: 1393: 1390: 1387: 1386: 1382: 1378: 1372: 1366: 1364: 1362: 1358: 1353: 1351: 1348: 1346: 1344: 1341: 1339: 1337: 1333: 1332: 1329: 1327: 1322: 1319: 1316: 1313: 1310: 1307: 1304: 1303: 1300: 1298: 1293: 1291: 1289: 1288:Edmontosaurus 1285: 1281: 1276: 1274: 1271: 1269: 1264: 1262: 1261: 1257: 1253: 1251: 1250: 1249: 1248:Edmontosaurus 1244: 1243: 1240: 1238: 1235: 1233: 1230: 1228: 1225: 1224: 1221: 1219: 1214: 1212: 1210: 1205: 1203: 1200: 1198: 1196: 1193: 1191: 1189: 1185: 1184: 1181: 1179: 1174: 1172: 1170: 1166: 1161: 1159: 1156: 1154: 1151: 1149: 1148: 1144: 1142: 1141: 1140: 1135: 1134: 1131: 1129: 1124: 1122: 1120: 1115: 1113: 1110: 1108: 1105: 1103: 1102: 1098: 1096: 1095: 1094: 1093:Alaskacephale 1089: 1088: 1084: 1081: 1078: 1075: 1072: 1069: 1068: 1065: 1063: 1058: 1050: 1041: 1038: 1036: 1029: 1025: 1022: 1018: 1015: 1011: 1006: 1001: 996: 993: 989: 988: 984: 981: 980: 972: 966: 960: 958: 953: 951: 949: 945: 941: 937: 935: 929: 927: 924: 922: 919: 916: 913: 910: 908: 907: 905: 900: 898: 897: 896: 891: 890: 887: 885: 880: 877: 873: 871: 868: 866: 863: 861: 860: 856: 854: 853: 852: 847: 846: 843: 841: 836: 834: 832: 831: 826: 825: 824:Tyrannosaurus 820: 819: 814: 813:tyrannosaurid 810: 806: 804: 802: 798: 793: 791: 788: 786: 785: 781: 779: 778: 777: 772: 771: 768: 766: 761: 759: 757: 756: 750: 748: 745: 743: 740: 738: 735: 733: 730: 729: 726: 723: 719: 716: 713: 710: 707: 704: 703: 700: 698: 695: 693: 691: 690: 686: 684: 683: 679: 677: 676: 675: 670: 669: 666: 664: 659: 656: 652: 650: 647: 645: 642: 639: 636: 634: 633: 629: 627: 626: 625: 624:Dromaeosaurus 620: 619: 615: 612: 609: 606: 603: 600: 599: 596: 595: 590: 582: 573: 570: 568: 561: 557: 554: 550: 547: 543: 538: 533: 528: 525: 521: 520: 516: 513: 512: 504: 501: 495: 490: 485: 483: 481: 480:Arctic Circle 476: 472: 469: 465: 461: 457: 453: 449: 445: 441: 440: 435: 432: 428: 424: 423:fungal hyphae 420: 416: 412: 408: 404: 400: 392: 388: 381: 379: 377: 373: 369: 365: 356: 354: 352: 349:stage of the 348: 347:Maastrichtian 344: 340: 336: 327: 316: 312: 309: 298: 294: 289: 261: 259: 255: 250: 222: 220: 216: 211: 208: 204: 200: 197: 193: 190: 186: 183: 179: 174: 171: 168: 164: 161: 158: 154: 150: 146: 143: 140: 136: 133: 130: 126: 119: 114: 101: 96: 91: 86: 81: 76: 71: 66: 61: 56: 51: 46: 40: 33: 32:Maastrichtian 29: 25: 20: 5391:Danian Stage 5308: 5304: 5277: 5267: 5260:Bibliography 5216: 5212: 5205: 5164: 5160: 5150: 5131: 5067: 5063: 5053: 5028: 5022: 4969: 4965: 4901: 4895: 4889: 4885: 4841: 4826:Spicer, R.A. 4776: 4772: 4710: 4706: 4696: 4663: 4659: 4648:Currie, P.J. 4584: 4580: 4522: 4518: 4483:(1): 33–49. 4480: 4476: 4419: 4415: 4332: 4328: 4304: 4300: 4286:Ryherd, T.J. 4266:Flores, R.M. 4232: 4228: 4222: 4197: 4193: 4190:Norton, D.W. 4152: 4148: 4142: 4076: 4070: 4010: 3963: 3917: 3912: 3907: 3900: 3899: 3891: 3890: 3881: 3876: 3871: 3865: 3863: 3855: 3854: 3845: 3840: 3835: 3829: 3828: 3820: 3819: 3810: 3805: 3800: 3793: 3792: 3783: 3778: 3773: 3766: 3765: 3757: 3756: 3747: 3742: 3737: 3730: 3729: 3721: 3720: 3711: 3706: 3701: 3695: 3694: 3685: 3680: 3675: 3669: 3667: 3658: 3653: 3648: 3641: 3640: 3631: 3626: 3621: 3614: 3613: 3604: 3599: 3594: 3589:A. trialatus 3588: 3587: 3579: 3578: 3569: 3564: 3559: 3553: 3551: 3543: 3542: 3533: 3528: 3523: 3516: 3515: 3507: 3506: 3497: 3492: 3487: 3482: 3477: 3466: 3461: 3456: 3451: 3443: 3442: 3436:Botryococcus 3434: 3433: 3424: 3419: 3414: 3408: 3407: 3399: 3398: 3389: 3384: 3379: 3372: 3371: 3363: 3362: 3353: 3348: 3343: 3337: 3335: 3326: 3321: 3316: 3309: 3308: 3299: 3294: 3289: 3282: 3281: 3273: 3272: 3263: 3258: 3253: 3247: 3246: 3238: 3237: 3228: 3223: 3218: 3213:C. congruens 3212: 3210: 3202: 3201: 3192: 3187: 3182: 3175: 3174: 3166: 3165: 3156: 3151: 3146: 3139: 3138: 3130: 3129: 3120: 3115: 3110: 3103: 3101: 3093: 3091: 3082: 3077: 3072: 3066: 3064: 3055: 3054: 3045: 3040: 3035: 3029: 3028: 3020: 3019: 3010: 3005: 3000: 2993: 2992: 2984: 2983: 2974: 2969: 2964: 2957: 2956: 2948: 2947: 2938: 2933: 2928: 2922: 2921: 2913: 2912: 2903: 2898: 2893: 2888:E. accuratus 2887: 2885: 2877: 2876: 2867: 2862: 2857: 2852:F. scabratus 2851: 2850: 2844:Fibulapollis 2842: 2841: 2832: 2827: 2822: 2817:F. undulosus 2816: 2815: 2807: 2806: 2797: 2792: 2787: 2780: 2779: 2771: 2770: 2761: 2756: 2751: 2746:G. senonicus 2745: 2744: 2736: 2735: 2726: 2721: 2716: 2710: 2709: 2700: 2695: 2690: 2684: 2683: 2675: 2674: 2665: 2660: 2655: 2649: 2648: 2640: 2639: 2630: 2625: 2620: 2615:I. tappaniae 2614: 2613: 2605: 2604: 2595: 2590: 2585: 2578: 2577: 2569: 2568: 2559: 2554: 2549: 2542: 2541: 2533: 2532: 2523: 2518: 2513: 2506: 2505: 2497: 2496: 2487: 2482: 2477: 2471: 2470: 2462: 2461: 2452: 2447: 2442: 2435: 2434: 2425: 2420: 2415: 2408: 2407: 2399: 2398: 2389: 2384: 2379: 2373: 2372: 2364: 2363: 2354: 2349: 2344: 2337: 2336: 2328: 2327: 2318: 2313: 2308: 2303: 2298: 2289: 2284: 2279: 2273: 2272: 2266:Lunatadinium 2264: 2263: 2254: 2249: 2244: 2237: 2236: 2228: 2227: 2218: 2213: 2208: 2202: 2201: 2193: 2192: 2183: 2178: 2173: 2166: 2165: 2157: 2156: 2147: 2142: 2137: 2132:O. wellmanii 2131: 2130: 2122: 2121: 2112: 2107: 2102: 2096: 2095: 2086: 2081: 2076: 2070: 2069: 2060: 2055: 2050: 2043: 2042: 2033: 2028: 2023: 2016: 2015: 2007: 2006: 1997: 1992: 1987: 1980: 1979: 1971: 1970: 1961: 1956: 1951: 1945: 1943: 1935: 1933: 1924: 1919: 1914: 1907: 1905: 1897: 1895: 1882: 1877: 1872: 1866: 1865: 1857: 1856: 1843: 1836: 1829: 1828: 1820: 1819: 1810: 1803: 1797: 1796: 1788: 1787: 1774: 1769: 1764: 1758: 1757: 1749: 1748: 1739: 1732: 1727:P. wigginsii 1726: 1725: 1719:Parataxodium 1717: 1716: 1686: 1674: 1665: 1608: 1566: 1559: 1531: 1524: 1453: 1448:Gypsonictops 1446: 1422: 1418: 1411: 1360: 1357:Parksosaurus 1356: 1354: 1349: 1342: 1334: 1323: 1294: 1287: 1279: 1277: 1272: 1265: 1259: 1255: 1254: 1246: 1245: 1215: 1208: 1206: 1201: 1194: 1186: 1175: 1168: 1164: 1162: 1157: 1152: 1147:P. perotorum 1146: 1145: 1137: 1136: 1125: 1116: 1111: 1106: 1101:A. gangloffi 1100: 1099: 1091: 1090: 1060: 1048: 1039: 982: 954: 947: 933: 930: 925: 920: 917: 914: 911: 903: 901: 893: 892: 881: 869: 864: 858: 857: 849: 848: 837: 828: 822: 816: 808: 807: 794: 789: 783: 782: 774: 773: 762: 753: 751: 746: 741: 736: 731: 722:ornithomimid 720:Possibly an 696: 687: 681: 680: 672: 671: 660: 648: 643: 640: 637: 631: 630: 622: 621: 592: 580: 571: 514: 499: 437: 396: 391:Hadrosaurids 360: 334: 332: 285:83.2; -115.9 246:70.0; -151.5 5070:(1): 5384. 4270:Myers, M.D. 4235:(11): 770. 3723:Annulispora 3670:A. dentatus 3554:A. cribrata 3409:C. ambigens 3248:C. bialatus 3057:Crassispora 3030:C. fragilis 3022:Cycadopites 2677:Hannisporis 2464:Kurtzipites 2340:"stellata" 2195:Mancicorpus 2097:O. arcticus 1946:P. reduncus 1846:sphenophyte 1822:Equisetites 1798:Q. angulata 1675:crossed out 1654:Morphotaxon 1582:metatherian 1502:Marsupialia 1336:Ornithopoda 1049:crossed out 1028:Morphotaxon 948:T. formosus 931:Remains of 876:dromaeosaur 830:Tarbosaurus 809:Nanuqsaurus 784:N. hoglundi 776:Nanuqsaurus 689:Denali Park 655:dromaeosaur 581:crossed out 560:Morphotaxon 475:angiosperms 283: / 244: / 219:Coordinates 5355:Categories 4779:: 347–365. 3940:References 3830:A. clavate 3445:B. braunii 2169:sp. indet 1867:P. krempii 1777:angiosperm 1705:Abundance 1671:small text 1640:Ichnotaxon 1561:Unnuakomys 1400:Abundance 1350:One tooth 1280:Ugrunaaluk 1117:The first 1079:Abundance 1045:small text 1014:Ichnotaxon 918:Byers Bed 644:Byers Bed 610:Abundance 577:small text 546:Ichnotaxon 446:bisaccate 444:hinterland 399:greenhouse 5333:128713816 5241:1477-2019 5197:260668330 5189:1477-2019 5092:2045-2322 5045:0272-4634 4860:ignored ( 4850:cite book 4737:1932-6203 4688:197535475 4656:Flaig, P. 4555:130049294 4547:0272-4634 4436:130766946 4359:0960-9822 4214:130669713 4000:ignored ( 3990:cite book 2711:H. amplus 2374:L. magnus 2071:O. parvus 2009:Ovoidites 1790:Quereuxia 1751:Hollickia 1702:Location 1609:Color key 1550:eutherian 1532:S. mikros 1469:eutherian 1413:Cimolodon 1394:Location 1076:Location 983:Color key 818:Lythronax 801:lower jaw 607:Location 594:Theropods 515:Color key 496:Theropods 491:Dinosaurs 415:dinocysts 376:ostracods 368:Paleogene 364:Campanian 339:formation 199:siltstone 185:Sandstone 176:Lithology 156:Underlies 148:Sub-units 5249:92613824 5110:30926823 4938:23840371 4897:PLoS ONE 4840:(eds.). 4755:21949721 4707:PLOS ONE 4621:32639990 4581:PLOS ONE 4367:34171301 4292:(2007). 4113:24621577 4072:PLoS ONE 4061:(2014). 3928:See also 1699:Species 1580:A small 1526:Sikuomys 1467:A small 1435:A small 1391:Species 1073:Species 674:Gruipeda 604:Species 471:woodland 403:alluvial 271:115°54′W 232:151°30′W 213:Location 207:ash-fall 189:mudstone 166:Overlies 30:: Early 5313:Bibcode 5305:PALAIOS 5221:Bibcode 5169:Bibcode 5101:6440964 5072:Bibcode 4974:Bibcode 4929:3686821 4906:Bibcode 4746:3176273 4715:Bibcode 4668:Bibcode 4612:7343144 4589:Bibcode 4527:Bibcode 4485:Bibcode 4337:Bibcode 4237:Bibcode 4229:Geology 4104:3951350 4081:Bibcode 4065:(ed.). 3913:Pollen 3877:Pollen 3841:Pollen 3806:Pollen 3779:Pollen 3743:Pollen 3707:Pollen 3681:Pollen 3654:Pollen 3627:Pollen 3600:Pollen 3457:Pollen 1770:Leaves 1711:Images 1647:Ootaxon 1548:A tiny 1504:indet. 1481:indet. 1423:nitidus 1406:Images 1381:Mammals 1373:Mammals 1338:indet. 1308:indet. 1260:regalis 1190:indet. 1085:Images 1021:Ootaxon 944:Montana 940:Alberta 895:Troodon 797:maxilla 708:indet. 616:Images 553:Ootaxon 382:Habitat 314:Country 268:83°12′N 229:70°00′N 181:Primary 138:Unit of 106:↓ 5343:  5331:  5292:  5270:: 311. 5247:  5239:  5195:  5187:  5138:  5108:  5098:  5090:  5043:  4936:  4926:  4753:  4743:  4735:  4686:  4619:  4609:  4553:  4545:  4434:  4365:  4357:  4212:  4111:  4101:  4019:  3978:  3769:sp. 1 3545:Azonia 3285:sp. 1 2019:? sp. 1708:Notes 1696:Genus 1688:Plants 1593:Plants 1536:Lower 1403:Notes 1388:Genus 1202:Teeth 1082:Notes 1070:Genus 870:Teeth 827:, and 613:Notes 601:Genus 458:, and 456:shrubs 448:pollen 434:spores 411:pyrite 407:gypsum 372:Danian 343:Alaska 323:  308:Alaska 305:  296:Region 5329:S2CID 5245:S2CID 5193:S2CID 5167:(1). 4684:S2CID 4551:S2CID 4432:S2CID 4307:: 52. 4297:(PDF) 4210:S2CID 3822:Alete 3617:spp. 3312:spp. 2996:spp. 2411:spp. 1666:Notes 1618:Taxon 1040:Notes 992:Taxon 811:is a 572:Notes 524:Taxon 468:polar 464:flora 460:herbs 452:trees 419:algae 195:Other 5341:ISBN 5290:ISBN 5237:ISSN 5185:ISSN 5136:ISBN 5106:PMID 5088:ISSN 5041:ISSN 4934:PMID 4862:help 4751:PMID 4733:ISSN 4617:PMID 4543:ISSN 4363:PMID 4355:ISSN 4305:1748 4109:PMID 4017:ISBN 4002:help 3976:ISBN 3903:sp. 3864:cf. 3796:sp. 3733:sp. 3668:cf. 3644:sp. 3552:cf. 3519:sp. 3375:sp. 3336:cf. 3211:cf. 3178:sp. 3142:sp. 3106:sp. 3102:cf. 3092:cf. 3065:cf. 2960:sp. 2886:cf. 2783:sp. 2581:sp. 2545:sp. 2509:sp. 2438:sp. 2240:sp. 2046:sp. 1983:sp. 1944:cf. 1934:cf. 1910:sp. 1906:cf. 1896:cf. 1832:sp. 1456:sp. 1421:cf. 1258:cf. 942:and 431:moss 429:and 427:fern 409:and 333:The 128:Type 45:PreꞒ 5321:doi 5282:doi 5229:doi 5177:doi 5096:PMC 5080:doi 5033:doi 4982:doi 4924:PMC 4914:doi 4741:PMC 4723:doi 4676:doi 4607:PMC 4597:doi 4535:doi 4493:doi 4424:doi 4345:doi 4245:doi 4202:doi 4157:doi 4099:PMC 4089:doi 3968:doi 1775:An 1359:or 936:sp. 357:Age 341:in 326:USA 5357:: 5327:. 5319:. 5309:29 5307:. 5288:. 5243:. 5235:. 5227:. 5217:17 5215:. 5191:. 5183:. 5175:. 5165:21 5163:. 5159:. 5118:^ 5104:. 5094:. 5086:. 5078:. 5066:. 5062:. 5039:. 5031:. 5027:. 5011:^ 4994:^ 4980:. 4970:48 4968:. 4946:^ 4932:. 4922:. 4912:. 4900:. 4894:. 4870:^ 4854:: 4852:}} 4848:{{ 4836:; 4828:; 4785:^ 4777:35 4775:. 4763:^ 4749:. 4739:. 4731:. 4721:. 4709:. 4705:. 4682:. 4674:. 4664:29 4662:. 4654:; 4650:; 4646:; 4642:; 4629:^ 4615:. 4605:. 4595:. 4585:15 4583:. 4579:. 4563:^ 4549:. 4541:. 4533:. 4523:33 4521:. 4517:. 4505:^ 4491:. 4479:. 4462:^ 4444:^ 4430:. 4420:20 4418:. 4410:; 4375:^ 4361:. 4353:. 4343:. 4333:31 4331:. 4327:. 4313:^ 4303:. 4299:. 4288:; 4284:; 4280:; 4276:; 4272:; 4268:; 4257:^ 4243:. 4233:13 4231:. 4208:. 4198:79 4196:. 4188:; 4184:; 4171:^ 4153:57 4151:. 4147:. 4121:^ 4107:. 4097:. 4087:. 4075:. 4069:. 4057:; 4028:^ 3994:: 3992:}} 3988:{{ 3974:. 3948:^ 3901:A. 3794:A. 3767:A. 3731:A. 3642:A. 3615:A. 3517:B. 3373:C. 3310:C. 3283:C. 3176:C. 3140:C. 3104:C. 3060:? 2994:D. 2958:D. 2579:I. 2543:I. 2507:I. 2436:L. 2409:L. 2338:L. 2238:L. 2167:M. 2044:O. 2017:O. 1981:P. 1908:P. 1887:. 1848:. 1844:A 1830:E. 1673:; 1584:. 1552:. 1540:. 1471:. 1454:G. 1439:. 1419:C. 1363:. 1290:. 1256:E. 1211:. 1047:; 934:T. 906:sp 904:T. 878:. 874:A 833:. 821:, 803:. 758:. 724:. 657:. 653:A 579:; 454:, 442:, 425:, 421:, 417:, 205:, 201:, 187:, 95:Pg 39:Ma 5347:. 5335:. 5323:: 5315:: 5298:. 5284:: 5251:. 5231:: 5223:: 5199:. 5179:: 5171:: 5144:. 5112:. 5082:: 5074:: 5068:9 5047:. 5035:: 4988:. 4984:: 4976:: 4940:. 4916:: 4908:: 4902:8 4892:" 4864:) 4757:. 4725:: 4717:: 4711:6 4690:. 4678:: 4670:: 4623:. 4599:: 4591:: 4557:. 4537:: 4529:: 4499:. 4495:: 4487:: 4481:9 4438:. 4426:: 4369:. 4347:: 4339:: 4251:. 4247:: 4239:: 4216:. 4204:: 4165:. 4159:: 4115:. 4091:: 4083:: 4077:9 4023:. 4004:) 3984:. 3970:: 2781:F 100:N 90:K 85:J 80:T 75:P 70:C 65:D 60:S 55:O 50:Ꞓ

Index

Stratigraphic range
Maastrichtian
Ma
PreꞒ

O
S
D
C
P
T
J
K
Pg
N

Geological formation
Colville Group
Sagavanirktok Formation
Schrader Bluff Formation
Sandstone
mudstone
siltstone
carbonaceous shale
ash-fall
Coordinates
70°00′N 151°30′W / 70.0°N 151.5°W / 70.0; -151.5
Approximate paleocoordinates
83°12′N 115°54′W / 83.2°N 115.9°W / 83.2; -115.9
Alaska

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.