36:
213:
2465:
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1675:
564:. The rows of cusps also display a strong curvature and the cuspate anterolabial lobe is better developed. There is more variation in the height of the cusps among the middle row. These particular premolars — P4s — have three rows of cusps, of which there seem to be about 15 or so in all. In addition, "the enamel is weakly wrinkled on all specimens". (
583:. Although knowledge of this species is limited, we consider its naming to be justified based on the diagnostic morphology of ultimate fourth premolars in ptilodontids generally (Krause 1982, 1987) and the unique structure of these teeth.
594:
Cochrane 2 has also been interpreted as correlating to the
Porcupine Hills Formation, but recent studies suggest that it is part of the Paskapoo, as originally concluded by Russell in 1929.
587:
The species name honours L. S. Russell "for his pioneering research on the mammals from
Cochrane 2". All presently identified remains are part of the collection of the
65:
2581:
2650:
2568:
2655:
2645:
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618:
D. W. Krause. (1987) "Baiotomeus, a new ptilodontid multituberculate (Mammalia) from the Middle
Paleocene of western North America."
496:
87:
664:
48:
58:
52:
44:
212:
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556:
in length. This is smaller than the teeth of other genus members; from front to back, approximately 45% less than
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407:
69:
685:
640:
2635:
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485:
2607:
1921:
588:
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Z. Kielan-Jaworowska and J. H. Hurum. (2001) "Phylogeny and
Systematics of multituberculate mammals."
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773:
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1406:
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1139:
2594:
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960:
827:
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630:
New earliest
Tiffanian (late Paleocene) mammals from Cochrane 2, southwestern Alberta, Canada
579:
At present, P4s are the only specimens from
Cochrane 2 that we can identify as pertaining to
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2214:
1604:
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1989:
1982:
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1427:
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at Yale. Collected in 1958 and 1965, these were originally described as belonging to
453:
366:
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159:
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1740:
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1485:
1467:
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1204:
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have been discovered in
Montana in the United States, in the Medicine Rocks of the
418:
17:
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2020:
1975:
1941:
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1364:
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1350:
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915:
897:
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653:
G. G. Simpson (1935). "New
Paleocene mammals from the Fort Union of Montana."
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189:
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719:
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in the United States, in strata of the Gidley Quarry dated to the
348:
628:
Craig S. Scott, Richard C. Fox, and Gordon P. Youzwyshyn. (2002)
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2506:
1690:
882:
712:
674:
29:
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394:
is a fairly substantial multituberculate weighing almost
410:
of
Alberta, Canada. The holotype specimen hails from
2515:
2403:
2369:
2331:
2300:
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2213:
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2030:
1999:
1965:
1931:
1890:
1835:
1786:
1703:
1641:
1603:
1484:
1450:
1441:
1319:
1250:
1241:
1203:
1165:
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1008:
959:
926:
895:
838:
811:
784:
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505:. It was given its current name in 1987 by Krause (
655:Proceedings of the United States National Museum
332:is a genus of mammals from the extinct order of
57:but its sources remain unclear because it lacks
470:Krause formally established the genus in 1987.
439:), but it has been reclassified several times:
686:
8:
2503:
2337:
2219:
2005:
1711:
1700:
1687:
1447:
1247:
1171:
1095:
933:
907:
903:
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879:
817:
790:
763:
752:
709:
693:
679:
671:
488:, which have been dated to the Paleocene.
101:
88:Learn how and when to remove this message
663:This information has been derived from
354:was formally named by Krause in 1987 (
7:
541:, which has been dated to the lower
466:by Hartman in 1986 — which is
2651:Paleogene mammals of North America
25:
548:Remains consist of nine upper pre
497:Peabody Museum of Natural History
491:Several specimens, including the
428:The species was originally named
398:. Remains have been found in the
2487:
2486:
2463:
1673:
665:MESOZOIC MAMMALS; Ptilodontoidea
211:
34:
575:According to the same authors:
565:
537:, Canada, in Cochrane 2 of the
506:
436:
355:
358:), and has also been known as
1:
2656:Fossil taxa described in 1987
645:Acta Palaeontologica Polonica
552:, (P4), which average nearly
513:has also been confused with
2646:Paleocene genus extinctions
462:It was finally assigned to
2677:
2661:Prehistoric mammal genera
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2008:
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708:
408:Porcupine Hills Formation
308:
301:
208:Scientific classification
206:
104:
27:Extinct family of mammals
667:, an Internet directory.
545:stage of the Paleocene.
43:This article includes a
620:Journal of Paleontology
533:has been discovered in
336:. It is known from the
72:more precise citations.
486:Tongue River Formation
2608:Paleobiology Database
589:University of Alberta
458:in 1974, by Schiebout
660:, pg. 221–244.
650:, pg. 691–704.
625:, pg. 595–603.
615:, pg. 389–429.
435:by Simpson in 1935 (
400:Fort Union Formation
392:Baiotomeus douglassi
2333:Djadochtatherioidea
531:Baiotomeus russelli
482:Baiotomeus lamberti
18:Baiotomeus lamberti
2405:Djadochtatheriidae
1967:Microcosmodontidae
560:and 40% less than
539:Paskapoo Formation
449:in 1940, by Jepsen
45:list of references
2641:Paleocene mammals
2623:
2622:
2595:Open Tree of Life
2509:Taxon identifiers
2500:
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2472:
2471:
2459:
2458:
2455:
2454:
2451:
2450:
2327:
2326:
2209:
2208:
2066:Neoplagiaulacidae
1682:
1681:
1669:
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1665:
1664:
1661:
1660:
1637:
1636:
1437:
1436:
1243:Paulchoffatioidea
1237:
1236:
1083:
1082:
1079:
1078:
961:Ferugliotheriidae
874:
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16:(Redirected from
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2421:Djadochtatherium
2338:
2220:
2215:Taeniolabidoidea
2006:
1712:
1701:
1688:
1677:
1605:Albionbaataridae
1448:
1321:Paulchoffatiidae
1252:Pinheirodontidae
1248:
1172:
1096:
1090:Multituberculata
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334:Multituberculata
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268:Multituberculata
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110:Temporal range:
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68:this article by
59:inline citations
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1708:
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1628:Proalbionbaatar
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1379:Meketichoffatia
1330:Bathmochoffatia
1315:
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1199:
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979:Ferugliotherium
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1983:Microcosmodon
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1826:Paracimexomys
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1788:Paracimexomys
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1621:Kielanobaatar
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1428:Xenachoffatia
1425:
1423:
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1418:
1416:
1415:
1411:
1409:
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1404:
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1400:Pseudobolodon
1397:
1395:
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1390:
1388:
1387:
1386:Paulchoffatia
1383:
1381:
1380:
1376:
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1372:Meketibolodon
1369:
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1167:Allodontoidea
1164:
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1155:Hahnodontidae
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1026:Galulatherium
1023:
1021:
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1019:Bharattherium
1016:
1015:
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1010:Sudamericidae
1007:
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495:, are at the
494:
489:
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476:
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469:
465:
457:
455:
454:Neoplagiaulax
451:
448:
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437:Simpson, 1935
434:
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367:Neoplagiaulax
363:
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342:North America
339:
335:
331:
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281:Ptilodontidae
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92:
89:
81:
71:
67:
61:
60:
54:
50:
46:
41:
32:
31:
19:
2516:
2440:
2435:Mangasbaatar
2433:
2428:Kryptobaatar
2426:
2419:
2414:Catopsbaatar
2412:
2392:
2387:Nessovbaatar
2385:
2380:Kamptobaatar
2378:
2360:Nemegtbaatar
2358:
2351:
2346:Bulganbaatar
2344:
2316:
2309:
2291:Sphenopsalis
2289:
2282:
2277:Lambdopsalis
2275:
2255:
2250:Valenopsalis
2248:
2241:
2234:
2226:
2198:
2191:
2184:
2178:
2177:
2170:
2150:
2143:
2138:Paressonodon
2136:
2131:Parectypodus
2129:
2122:
2115:
2108:
2101:
2094:
2087:
2080:
2073:
2053:
2046:
2039:
2019:
2012:
1988:
1981:
1974:
1954:
1947:
1940:
1920:
1913:
1906:
1899:
1879:
1872:
1867:Meniscoessus
1865:
1858:
1851:
1844:
1837:Cimolomyidae
1824:
1817:
1810:
1803:
1796:
1787:
1774:
1767:
1760:
1753:
1746:
1741:Corriebaatar
1739:
1732:
1725:
1718:
1626:
1619:
1614:Albionbaatar
1612:
1592:
1587:Tedoribaatar
1585:
1578:
1571:
1564:
1556:
1549:
1542:
1535:
1528:
1521:
1514:
1507:
1502:Dolichoprion
1500:
1493:
1486:Eobaataridae
1473:
1468:Morrisonodon
1466:
1459:
1426:
1419:
1412:
1405:
1398:
1391:
1384:
1377:
1370:
1363:
1356:
1349:
1344:Guimarotodon
1342:
1335:
1328:
1308:
1301:
1294:
1287:
1280:
1273:
1266:
1259:
1226:
1219:
1212:
1205:Allodontidae
1192:
1185:
1178:
1153:
1145:
1138:
1131:
1124:
1119:Hahnotherium
1117:
1109:
1102:
1068:
1061:
1053:
1046:
1038:
1031:
1024:
1017:
997:
992:Magallanodon
990:
977:
971:Argentodites
969:
949:Groeberiidae
947:
942:Adalatherium
940:
914:
741:Theriiformes
736:
657:
654:
647:
644:
633:
622:
619:
612:
610:Paleontology
609:
603:Bibliography
593:
586:
580:
574:
567:
561:
558:B. douglassi
557:
547:
530:
529:
524:
514:
510:
507:Krause, 1987
500:
490:
481:
479:
474:
467:
463:
461:
452:
443:
429:
427:
391:
390:
386:B. douglassi
385:
371:
365:
359:
356:Krause, 1987
351:
346:
328:
327:
326:
318:
314:
311:B. douglassi
310:
309:
294:
293:
105:
99:
84:
75:
64:Please help
56:
2541:Wikispecies
2394:Sloanbaatar
2318:Taeniolabis
2193:Prochetodon
2021:Neoliotomus
1976:Acheronodon
1942:Clemensodon
1892:Kogaionidae
1846:Buginbaatar
1762:Uzbekbaatar
1727:Ameribaatar
1706:Cimolodonta
1693:Cimolodonta
1643:Cimolodonta
1566:Nokerbaatar
1495:Cheruscodon
1310:Pinheirodon
1289:Gerhardodon
1282:Ecprepaulax
1268:Bructerodon
1261:Bernardodon
1194:Zofiabaatar
1180:Arginbaatar
985:LACM 149371
581:B. russelli
562:B. lamberti
525:B. russelli
511:B. lamberti
480:Remains of
475:B. lamberti
416:Torrejonian
319:B. russelli
315:B. lamberti
127:65–62
116:Torrejonian
70:introducing
2630:Categories
2547:Baiotomeus
2517:Baiotomeus
2480:See also:
2284:Prionessus
2236:Catopsalis
2186:Kimbetohia
2179:Baiotomeus
2172:Aenigmamys
1949:Eucosmodon
1901:Barbatodon
1874:Paressodon
1652:see below↓
1594:Teutonodon
1580:Sinobaatar
1558:Monobaatar
1544:Liaobaatar
1537:Indobaatar
1475:Plagiaulax
1365:Kuehneodon
1358:Kielanodon
1351:Henkelodon
1214:Ctenacodon
1111:Baidabatyr
1104:Argillomys
1063:Sudamerica
916:Haramiyida
898:Allotheria
885:Allotheria
849:see below↓
840:Allotheria
801:Cynodontia
786:Cynodontia
702:Allotheria
598:References
464:Baiotomeus
376:(partly).
364:(partly),
352:Baiotomeus
329:Baiotomeus
295:Baiotomeus
106:Baiotomeus
78:March 2013
2442:Tombaatar
2152:Xyronomys
2145:Xanclomys
2110:Mimetodon
2103:Mesodmops
2082:Ectypodus
2075:Cernaysia
2048:Cimolodon
2041:Anconodon
2014:Filikomys
1915:Kogaionon
1881:Parikimys
1860:Essonodon
1853:Cimolomys
1819:Dakotamys
1812:Cimexomys
1805:Cedaromys
1798:Bryceomys
1769:Viridomys
1748:Fractinus
1720:Allocodon
1421:Sunnyodon
1414:Rugosodon
1407:Renatodon
1337:Galveodon
1303:Lavocatia
1275:Cantalera
1140:Tashtykia
1055:Patagonia
1040:Greniodon
774:Synapsida
758:Synapsida
718:Kingdom:
543:Tiffanian
502:Mimetodon
456:douglassi
447:douglassi
445:Mimetodon
433:douglassi
423:Paleocene
361:Mimetodon
338:Paleocene
231:Kingdom:
225:Eukaryota
120:Tiffanian
112:Paleocene
2526:Wikidata
2492:Category
2257:Yubaatar
2228:Bubodens
2200:Ptilodus
2089:Krauseia
2055:Liotomus
1956:Stygimys
1551:Loxaulax
1509:Eobaatar
1296:Iberodon
1228:Psalodon
1221:Passumys
1187:Glirodon
1048:Lavanify
828:Mammalia
813:Mammalia
732:Mammalia
726:Chordata
724:Phylum:
720:Animalia
634:Warning:
518:montanus
516:Ptilodus
493:holotype
431:Ptilodus
373:Ptilodus
274:Family:
255:Mammalia
245:Chordata
241:Phylum:
235:Animalia
221:Domain:
2600:3615482
2587:1198546
2574:4831424
2561:4526772
2532:Q730287
2124:Nidimys
2096:Mesodma
1922:Litovoi
1908:Hainina
1755:Halodon
1734:Boffius
1530:Iberica
1461:Bolodon
1133:Tagaria
1126:Janumys
1070:Vintana
730:Class:
535:Alberta
421:of the
412:Wyoming
404:Montana
380:Species
303:Species
287:Genus:
261:Order:
251:Class:
196:↓
66:improve
570:, 2002
568:et al.
566:Scott
554:2.5 mm
550:molars
468:before
2613:39811
2582:IRMNG
1790:group
737:Clade
648:47(4)
419:stage
396:200 g
349:genus
51:, or
2569:GBIF
826:see
799:see
772:see
636:353
406:and
347:The
135:PreꞒ
2556:EoL
643:).
641:PDF
509:).
402:of
340:of
2632::
2610::
2597::
2584::
2571::
2558::
2543::
2528::
739::
658:83
638:KB
623:61
613:44
591:.
572:)
520:.
425:.
344:.
185:Pg
129:Ma
55:,
47:,
2231:?
1779:?
1561:?
1158:?
1150:?
1114:?
1058:?
1043:?
987:?
974:?
963:?
952:?
930:?
919:?
694:e
687:t
680:v
632:(
291:†
278:†
265:†
190:N
180:K
175:J
170:T
165:P
160:C
155:D
150:S
145:O
140:Ꞓ
124:~
122:)
118:-
114:(
91:)
85:(
80:)
76:(
62:.
20:)
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