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Chibanian

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The Chibanian stratum, which dates back to the Chiba period, is located along the Yoro River in Ichihara City, Chiba Prefecture. At the bottom left is a golden spike that marks the boundary between eras. The color-coded stakes on the right mark the boundaries of geological formations, indicating that
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Vershinina, Alisa O.; Heintzman, Peter D.; Froese, Duane G.; Zazula, Grant; Cassatt-Johnstone, Molly; Dalén, Love; Der Sarkissian, Clio; Dunn, Shelby G.; Ermini, Luca; Gamba, Cristina; Groves, Pamela; Kapp, Joshua D.; Mann, Daniel H.; Seguin-Orlando, Andaine; Southon, John (December 2021).
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Chalk, Thomas B.; Hain, Mathis P.; Foster, Gavin L.; Rohling, Eelco J.; Sexton, Philip F.; Badger, Marcus P. S.; Cherry, Soraya G.; Hasenfratz, Adam P.; Haug, Gerald H.; Jaccard, Samuel L.; Martínez-García, Alfredo; Pälike, Heiko; Pancost, Richard D.; Wilson, Paul A. (2017-12-12).
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Lupien, Rachel L.; Russell, James M.; Pearson, Emma J.; Castañeda, Isla S.; Asrat, Asfawossen; Foerster, Verena; Lamb, Henry F.; Roberts, Helen M.; Schäbitz, Frank; Trauth, Martin H.; Beck, Catherine C.; Feibel, Craig S.; Cohen, Andrew S. (24 February 2022).
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became completely extinct in Afro-Eurasia, but continued to persist in the Americas into the Late Pleistocene. There was a major extinction of carnivorous mammals in Europe around the Early-Middle Pleistocene transition, including the giant hyena
776:, Japan) replaced the Ionian as the Subcommission on Quaternary Stratigraphy's preferred GSSP proposal for the age that should replace the Middle Pleistocene sub-epoch. The "Chibanian" name was ratified by the IUGS in January 2020. 2352:
Fernández-Monescillo, Marcos; Martínez, Gastón; García López, Daniel; Frechen, Manfred; Romero-Lebrón, Eugenia; Krapovickas, Jerónimo M.; Haro, J. Augusto; Rodríguez, Pablo E.; Rouzaut, Sabrina; Tauber, Adan A. (February 2023).
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Froese, Duane; Stiller, Mathias; Heintzman, Peter D.; Reyes, Alberto V.; Zazula, Grant D.; Soares, André E. R.; Meyer, Matthias; Hall, Elizabeth; Jensen, Britta J. L.; Arnold, Lee J.; MacPhee, Ross D. E. (2017-03-28).
2355:"The last record of the last typotherid (Notoungulata, Mesotheriidae, Mesotherium cristatum) for the middle Pleistocene of the western Pampean region, Córdoba Province, Argentina, and its biostratigraphic implications" 772:(IUGS) had previously proposed replacement of the Middle Pleistocene by an Ionian Age based on strata found in Italy. In November 2017, however, the Chibanian (based on strata at a site in 2827: 1679: 2168:"New remains of Sinomastodon yangziensis (Proboscidea, Gomphotheriidae) from Sanhe karst Cave, with discussion on the evolution of Pleistocene Sinomastodon in South China" 1904: 1834:
Sun, Youbin; McManus, Jerry F.; Clemens, Steven C.; Zhang, Xu; Vogel, Hendrik; Hodell, David A.; Guo, Fei; Wang, Ting; Liu, Xingxing; An, Zhisheng (1 November 2021).
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The Early-Middle Pleistocene boundary saw the migration of true horses out of North America and into Eurasia. Also around this time, the European mammoth species
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as the sole family of notoungulates to persist into the Late Pleistocene. During the late Middle Pleistocene, around 195,000-135,000 years ago, the
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Cantalapiedra, Juan L.; Sanisdro, Oscar L.; Zhang, Hanwen; Alberdi, Mª Teresa; Prado, Jose Luis; Blanco, Fernando; Saarinen, Juha (1 July 2021).
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Eastern Africa's hydroclimate was governed primarily by orbital precession, although modulated significantly by the 100 kyr eccentricity cycle.
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D. Richter & others (8 June 2017). "The Age of Hominin Fossils from Jebel Irhoud, Morocco, and the origins of the Middle Stone Age".
2007:"Seismic and stratigraphic evidence for reef expansion and onset of aridity on the Northwest Shelf of Australia during the Pleistocene" 1421: 3496: 796:
present during most of the Early Pleistocene to a 100,000 year periodicity, with the glacial cycles becoming asymmetric, having long
1559: 1900:"The Middle to Late Pleistocene transition in the Azraq Oasis, Jordan: A phytolith-based reconstruction of wetland palaeoecology" 986:
found at Bilzingsleben in Germany, a team of scientists concluded that, around 400 ka, hominids in the area hunted and exploited
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Period. The Chibanian name was officially ratified in January 2020. It is currently estimated to span the time between 0.770
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periods. Millennial-scale climatic variability continued to be highly sensitive to precession and obliquity cycles.
2682: 1495: 1364: 1320: 785: 734: 706:(770,000 years ago) and 0.129 Ma (129,000 years ago), also expressed as 770–126 ka. It includes the transition in 1092: 733:, when the Earth's magnetic field last underwent reversal. Its end roughly coincides with the termination of the 596: 3491: 2307:"Mammoth evolution in the late Middle Pleistocene: The Mammuthus trogontherii-primigenius transition in Europe" 856: 3109: 3104: 1182: 2603:"Beaver exploitation, 400,000 years ago, testifies to prey choice diversity of Middle Pleistocene hominins" 2468:
Wuttke, Michael; Přikryl, Tomáš; Ratnikov, Viacheslav Yu.; Dvořák, Zdeněk; Roček, Zbyněk (September 2012).
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faunal stage. Around 500,000 years ago, the last members of the largely European aquatic frog genus
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Gallagher, Stephen J.; Wallace, Malcolm W.; Hoiles, Peter W.; Southwood, John M. (November 2014).
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dates to the Middle Pleistocene, around 430,000 years ago. This is the oldest found, as of 2016.
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in Europe by woolly mammoths being complete by around 200,000 years ago. The last member of the
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The term Middle Pleistocene was in use as a provisional or "quasi-formal" designation by the
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out of Africa and into Eurasia, including the first appearance of species like the European
773: 757: 575: 369: 3301: 3197: 3135: 3030: 2999: 2968: 2470:"Generic diversity and distributional dynamics of the Palaeobatrachidae (Amphibia: Anura)" 1225: 1156: 1131: 1043: 976: 933: 818: 797: 990:. They may have been targeted for their meat (based on cut marks on the bones) and skin. 2655: 2618: 2602: 2536: 2485: 2418: 2370: 2322: 2283: 2221: 2179: 2081: 2065: 2024: 1917: 1853: 1836:"Persistent orbital influence on millennial climate variability through the Pleistocene" 1784: 1718: 1650: 1595: 3451: 3270: 3140: 3035: 3004: 2445: 2402: 1983: 1811: 1768: 1544: 1197: 920: 882: 661: 3475: 3171: 3161: 3130: 3093: 3025: 2994: 2759: 2560: 2509: 2469: 2403:"Fossil and genomic evidence constrains the timing of bison arrival in North America" 2386: 2338: 2245: 2205: 2133: 1948: 1877: 1835: 1752: 1440: 1187: 982: 928: 902: 851: 789: 679: 546: 61: 2378: 2330: 2032: 3462: 3446: 3393: 3243: 3166: 2774: 2764: 2577:"The Oldest Human Genome Ever Has Been Sequenced, And It Could Rewrite Our History" 1680:"Japan-based name 'Chibanian' set to represent geologic age of last magnetic shift" 1619: 1315: 1263: 1170: 1165: 1136: 1107: 1053: 916: 912: 898: 876: 865: 849:(the steppe mammoth). This was coincident with the migration of the elephant genus 801: 586: 1641:. Special Issue: Topical Problems of Stratigraphy and Evolution of the Biosphere. 2291: 2187: 1925: 3388: 3257: 3233: 3078: 2873: 2789: 2718: 1288: 907: 870: 695: 307: 36: 2627: 2229: 1966: 1861: 3383: 3343: 3286: 3186: 3083: 2957: 2857: 2805: 2754: 2705: 2493: 1701:
Berends, C. J.; Köhler, P.; Lourens, L. J.; van de Wal, R. S. W. (June 2021).
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Gaudzinski-Windheuser, Sabine; Kindler, Lutz; Roebroeks, Wil (2023-11-13).
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Boyd, Kelsey C.; Ames, Christopher J.H.; Cordova, Carlos E. (1 June 2022).
1820: 1611: 3358: 3353: 3317: 3217: 3150: 3119: 3014: 2983: 2944: 2894: 2868: 2844: 2723: 1769:"Causes of ice age intensification across the Mid-Pleistocene Transition" 1726: 1258: 753: 434: 336: 296: 260: 76: 71: 56: 51: 41: 2637: 2544: 2266:
Palombo, Maria Rita; Sardella, Raffaele; Novelli, Micaela (March 2008).
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Cohen, K. M.; Finney, S. C.; Gibbard, P. L.; Fan, J.-X. (January 2020).
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Cohen, K. M.; Finney, S. C.; Gibbard, P. L.; Fan, J.-X. (January 2020).
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The late Middle Pleistocene was a time of regional aridification in the
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Along the northwestern Australian coast, the intensification of the
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Gradstein, Felix M.; Ogg, James G.; Smith, Alan G., eds. (2004).
3432: 3428: 3424: 822: 30: 2809: 2678: 2134:"Ecological Interactions of Elephantids in Pleistocene Eurasia" 1550:(3rd ed.). Cambridge: Cambridge University Press. p.  1435:(4). Subcommission on Quaternary Stratigraphy (SQS): 213–223. 968: 114: 1488:"Japan Puts Its Mark on Geologic Time with the Chibanian Age" 756:, Calabrian and Chibanian have been officially defined, the 752:(IUGS). While the three lowest ages of the Pleistocene, the 1635:"The Quaternary System/Period and its major sub-divisions" 911:, has its last records around 220,000 years ago, leaving 881:
The mid-late Middle Pleistocene saw the emergence of the
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Wang, Yuan; Jin, Chang-zhu; Mead, Jim I. (August 2014).
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in East Asia at the Early-Middle Pleistocene boundary,
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became extinct and was replaced by the Asian species
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International Commission of Stratigraphy 1420:Mike Walker; et al. (December 2018). 1401:. International Commission on Stratigraphy 770:International Union of Geological Sciences 750:International Union of Geological Sciences 741:period (corresponding to the beginning of 2654: 2636: 2626: 2474:Palaeobiodiversity and Palaeoenvironments 2444: 2426: 2097: 2040: 1982: 1810: 1792: 1734: 1518:"International Chronostratigraphic Chart" 1396:"International Chronostratigraphic Chart" 949:The Chibanian includes the transition in 666:the Earth's magnetic field was reversing. 1019: 729:. The beginning of the Chibanian is the 652:Upper boundary GSSP candidate section(s) 1386: 2199: 2197: 18: 2127: 2125: 7: 2052:– via Elsevier Science Direct. 1935:– via Elsevier Science Direct. 1575:D. Dahl-Jensen & others (2013). 1492:Eos – Earth & Space Science News 1132:Cromerian (Günz-Mindel) interglacial 678:(its previous informal name), is an 644:Upper boundary definition candidates 424: 3427:= kiloannum (thousands years ago); 1682:. The Japan Times. 14 November 2017 3431:= megaannum (millions years ago); 2305:Lister, Adrian M. (October 2022). 2255:– via Escience.magazine.org. 14: 3435:= gigaannum (billions years ago). 974:After analyzing 2,496 remains of 784:By early Middle Pleistocene, the 721:The Chibanian is preceded by the 3456: 3445: 1486:Hornyak, Tim (30 January 2020). 1240:Purfleet Interglacial in Britain 760:has yet to be formally defined. 2379:10.1016/j.quascirev.2022.107925 2331:10.1016/j.quascirev.2022.107693 2140:, Oxbow Books, pp. 53–60, 2033:10.1016/j.marpetgeo.2014.06.011 1633:P. L. Gibbard (17 April 2015). 2210:Nature Ecology & Evolution 1639:Russian Geology and Geophysics 1285:Aveley Interglacial in Britain 725:and succeeded by the proposed 16:Stage of the Pleistocene Epoch 1: 2874:Pleistocene (11.7 ka–2.58 Ma) 2292:10.1016/j.quaint.2007.08.029 2188:10.1016/j.quaint.2013.03.006 2012:Marine and Petroleum Geology 1926:10.1016/j.palaeo.2022.110967 1546:A Geological Time Scale 2004 1441:10.18814/epiiugs/2018/018016 937:and by extension the family 919:(the ancestor of the modern 821:resulted in an expansion of 792:from an average 41,000 year 2837:Geological history of Earth 2575:Crew, Bec (15 March 2016). 1645:(4). Elsevier BV: 686–688. 3518: 3110:Mississippian (323–359 Ma) 3105:Pennsylvanian (299–323 Ma) 2869:Holocene (present–11.7 ka) 2628:10.1038/s41598-023-46956-6 2359:Quaternary Science Reviews 2311:Quaternary Science Reviews 2230:10.1038/s41559-021-01498-w 2132:Lister, Adrian M. (2004), 1967:10.1038/s41598-022-06826-z 1862:10.1038/s41561-021-00794-1 1496:American Geophysical Union 1365:Mid-Pleistocene Transition 1321:Macro-haplogroup L (mtDNA) 1013: 1003: 997: 893:, with the replacement of 889:), and its replacement of 863:). With the extinction of 786:Mid-Pleistocene Transition 735:Penultimate Glacial Period 694:, being a division of the 647:Marine Isotope Substage 5e 3497:Pleistocene geochronology 3422: 3394:Paleoarchean (3.2–3.6 Ga) 3244:Terreneuvian (521–539 Ma) 2712: 2494:10.1007/s12549-012-0071-y 1659:10.1016/j.rgg.2015.03.015 1093:Gunz-Haslach interglacial 1016:Brunhes–Matuyama reversal 961:: i.e., the emergence of 800:punctuated by short warm 731:Brunhes–Matuyama reversal 698:Epoch within the ongoing 636:Upper boundary definition 571:Lower boundary definition 445: 112: 26: 3389:Mesoarchean (2.8–3.2 Ga) 3234:Miaolingian (497–509 Ma) 3079:Guadalupian (260–272 Ma) 2931:Paleocene (56.0–66.0 Ma) 2921:Oligocene (23.0–33.9 Ma) 2272:Quaternary International 2172:Quaternary International 857:straight-tusked elephant 3384:Neoarchean (2.5–2.8 Ga) 3349:Orosirian (1.8–2.05 Ga) 3344:Statherian (1.6–1.8 Ga) 3287:Cryogenian (635–720 Ma) 3177:Llandovery (433–444 Ma) 3084:Cisuralian (272–299 Ma) 2895:Pliocene (2.59–5.33 Ma) 2428:10.1073/pnas.1620754114 1794:10.1073/pnas.1702143114 674:, more widely known as 240:−0.2 — 230:−0.4 — 220:−0.6 — 210:−0.8 — 190:−1.2 — 180:−1.4 — 170:−1.6 — 160:−1.8 — 140:−2.2 — 130:−2.4 — 120:−2.6 — 3502:Cenozoic geochronology 3354:Rhyacian (2.05–2.3 Ga) 3323:Calymmian (1.4–1.6 Ga) 3282:Ediacaran (539–635 Ma) 3229:Furongian (485–497 Ma) 3074:Lopingian (252–260 Ma) 2900:Miocene (5.33–23.0 Ma) 1044:Günz (Elbe) glaciation 1000:Timeline of glaciation 980:(Eurasian beaver) and 923:) migrated across the 891:Mammuthus trogontherii 861:Palaeoloxodon antiquus 846:Mammuthus trogontherii 840:Mammuthus meridionalis 743:Marine Isotope Stage 5 667: 3359:Siderian (2.3–2.5 Ga) 3318:Ectasian (1.2–1.4 Ga) 3239:Series 2 (509–521 Ma) 2926:Eocene (33.9–56.0 Ma) 1707:Reviews of Geophysics 1375:Pleistocene megafauna 1014:Further information: 1006:Marine isotope stages 1004:Further information: 998:Further information: 983:Trogontherium cuvieri 887:Mammuthus primigenius 737:and the onset of the 682:in the international 664: 200:−1 — 150:−2 — 3399:Eoarchean (3.6–4 Ga) 3292:Tonian (720 Ma–1 Ga) 3172:Wenlock (427–433 Ma) 3162:Pridoli (419–423 Ma) 1727:10.1029/2020RG000727 1370:100,000-year problem 1273:Haplogroup A (Y-DNA) 1203:Homo heidelbergensis 1142:Homo heidelbergensis 1103:Homo heidelbergensis 964:Homo sapiens sapiens 827:Great Barrier Reef's 825:coincident with the 639:Not formally defined 612:35.2943°N 140.1465°E 3454: • 3443: • 3441:Geologic time scale 3203:Middle (458–470 Ma) 3167:Ludlow (423–427 Ma) 3136:Middle (383–393 Ma) 3031:Middle (237–247 Ma) 3000:Middle (164–174 Ma) 2619:2023NatSR..1319766G 2545:10.1038/nature22335 2537:2017Natur.546..293R 2486:2012PdPe...92..367W 2419:2017PNAS..114.3457F 2371:2023QSRv..30107925F 2323:2022QSRv..29407693L 2284:2008QuInt.179..176P 2222:2021NatEE...5.1266C 2180:2014QuInt.339...90W 2082:2021MolEc..30.6144V 2025:2014MarPG..57..470G 1918:2022PPP...59510967B 1854:2021NatGe..14..812S 1785:2017PNAS..11413114C 1779:(50): 13114–13119. 1719:2021RvGeo..5900727B 1651:2015RuGG...56..686G 1604:10.1038/nature11789 1596:2013Natur.493..489N 1347:Klasies River Caves 1032:palaeoanthropology 1010:Last Glacial Period 628:Lower GSSP ratified 608: /  583:Lower boundary GSSP 563:Time span formality 3482:Middle Pleistocene 3452:Geology portal 3313:Stenian (1–1.2 Ga) 3208:Early (470–485 Ma) 3141:Early (393–419 Ma) 3036:Early (247–252 Ma) 3005:Early (174–201 Ma) 2974:Early (100–145 Ma) 2969:Late (66.0–100 Ma) 2607:Scientific Reports 2174:. 339–340: 90–96. 1954:Scientific Reports 1269:Middle Paleolithic 1161:Haslach glaciation 959:Middle Paleolithic 951:palaeoanthropology 945:Palaeoanthropology 925:Bering land bridge 764:Definition process 716:Middle Paleolithic 708:palaeoanthropology 692:chronostratigraphy 684:geologic timescale 676:Middle Pleistocene 668: 553:Stratigraphic unit 543:Chronological unit 530:Time scale(s) used 492:Middle Pleistocene 3469: 3468: 3367: 3366: 3333:Paleoproterozoic 3252: 3251: 3198:Late (444–458 Ma) 3131:Late (359–383 Ma) 3044: 3043: 3026:Late (201–237 Ma) 2995:Late (145–164 Ma) 2939: 2938: 2860:(present–2.58 Ma) 2848:(present–66.0 Ma) 2803: 2802: 2798: 2797: 2719:Pleistocene Epoch 2706:Quaternary Period 2531:(7657): 293–296. 2413:(13): 3457–3462. 2147:978-1-78570-965-4 2090:10.1111/mec.15977 2076:(23): 6144–6161. 2070:Molecular Ecology 1841:Nature Geoscience 1590:(7433): 489–494. 1356: 1355: 1222:Elster glaciation 1218:Mindel glaciation 939:Palaeobatrachidae 739:Last Interglacial 659: 658: 617:35.2943; 140.1465 578:magnetic reversal 503:Usage information 461: 460: 441: 440: 3509: 3463:World portal 3461: 3460: 3450: 3449: 3412: 3376: 3336: 3305: 3302:Mesoproterozoic 3274: 3267: 3262: 3221: 3190: 3154: 3123: 3097: 3066: 3059: 3054: 3018: 2987: 2961: 2954: 2949: 2913: 2887: 2861: 2854: 2849: 2830: 2823: 2816: 2807: 2715: 2699: 2692: 2685: 2676: 2669: 2668: 2658: 2640: 2630: 2598: 2592: 2591: 2589: 2587: 2572: 2566: 2564: 2520: 2514: 2513: 2465: 2459: 2458: 2448: 2430: 2397: 2391: 2390: 2349: 2343: 2342: 2302: 2296: 2295: 2263: 2257: 2256: 2254: 2252: 2216:(9): 1266–1272. 2201: 2192: 2191: 2163: 2157: 2156: 2155: 2154: 2129: 2120: 2119: 2101: 2060: 2054: 2053: 2051: 2049: 2044: 2002: 1996: 1995: 1993: 1991: 1986: 1943: 1937: 1936: 1934: 1932: 1895: 1889: 1888: 1886: 1884: 1831: 1825: 1824: 1814: 1796: 1763: 1757: 1756: 1738: 1698: 1692: 1691: 1689: 1687: 1676: 1670: 1669: 1667: 1665: 1630: 1624: 1623: 1581: 1572: 1566: 1565: 1549: 1539: 1533: 1532: 1530: 1528: 1522: 1513: 1507: 1506: 1504: 1502: 1483: 1474: 1473: 1471: 1469: 1458: 1452: 1451: 1449: 1447: 1426: 1417: 1411: 1410: 1408: 1406: 1400: 1391: 1331:130–123 ka 1020: 941:became extinct. 788:had changed the 774:Chiba Prefecture 758:Late Pleistocene 623: 622: 620: 619: 618: 613: 609: 606: 605: 604: 601: 576:Brunhes-Matuyama 430: 425: 376: 361: 350: 339: 327: 310: 299: 287: 263: 251: 246: 241: 236: 231: 226: 221: 216: 211: 206: 201: 196: 191: 186: 181: 176: 171: 166: 161: 156: 151: 146: 141: 136: 131: 126: 121: 115: 103: 33: 29:0.774 – 0.129 19: 3517: 3516: 3512: 3511: 3510: 3508: 3507: 3506: 3492:Geological ages 3472: 3471: 3470: 3465: 3455: 3444: 3436: 3418: 3410: 3403: 3374: 3363: 3334: 3327: 3303: 3296: 3272: 3271:Neoproterozoic 3261:(539 Ma–2.5 Ga) 3260: 3259: 3258:Proterozoic Eon 3248: 3219: 3212: 3188: 3181: 3152: 3145: 3121: 3114: 3095: 3088: 3064: 3052: 3051: 3040: 3016: 3009: 2985: 2978: 2959: 2947: 2946: 2935: 2911: 2904: 2885: 2878: 2859: 2847: 2846: 2839: 2834: 2804: 2799: 2794: 2748: 2708: 2703: 2673: 2672: 2600: 2599: 2595: 2585: 2583: 2574: 2573: 2569: 2522: 2521: 2517: 2467: 2466: 2462: 2399: 2398: 2394: 2351: 2350: 2346: 2304: 2303: 2299: 2265: 2264: 2260: 2250: 2248: 2203: 2202: 2195: 2165: 2164: 2160: 2152: 2150: 2148: 2131: 2130: 2123: 2062: 2061: 2057: 2047: 2045: 2004: 2003: 1999: 1989: 1987: 1945: 1944: 1940: 1930: 1928: 1897: 1896: 1892: 1882: 1880: 1848:(11): 812–818. 1833: 1832: 1828: 1765: 1764: 1760: 1700: 1699: 1695: 1685: 1683: 1678: 1677: 1673: 1663: 1661: 1632: 1631: 1627: 1579: 1574: 1573: 1569: 1562: 1541: 1540: 1536: 1526: 1524: 1520: 1515: 1514: 1510: 1500: 1498: 1485: 1484: 1477: 1467: 1465: 1460: 1459: 1455: 1445: 1443: 1424: 1419: 1418: 1414: 1404: 1402: 1398: 1393: 1392: 1388: 1383: 1361: 1306:Illinoian Stage 1226:Riss glaciation 1194:(North America) 1018: 1012: 1002: 996: 947: 934:Palaeobatrachus 895:M. trogontherii 835: 819:Leeuwin Current 798:glacial periods 782: 766: 616: 614: 610: 607: 602: 599: 597: 595: 594: 593: 498: 494: 462: 457: 456: 454: 437: 428: 421: 420: 419: 414: 413: 412: 407: 406: 405: 400: 399: 398: 393: 392: 391: 386: 385: 384: 379: 378: 377: 368: 364: 363: 362: 357: 353: 352: 351: 346: 342: 341: 340: 335: 331: 330: 329: 325: 320: 319: 318: 313: 312: 311: 306: 302: 301: 300: 295: 291: 290: 289: 283: 278: 277: 276: 267: 266: 265: 259: 252: 249: 247: 244: 242: 239: 237: 234: 232: 229: 227: 224: 222: 219: 217: 214: 212: 209: 207: 204: 202: 199: 197: 194: 192: 189: 187: 184: 182: 179: 177: 174: 172: 169: 167: 164: 162: 159: 157: 154: 152: 149: 147: 144: 142: 139: 137: 134: 132: 129: 127: 124: 122: 119: 102: 101: 100: 99: 94: 89: 84: 79: 74: 69: 64: 59: 54: 49: 44: 39: 28: 27: 17: 12: 11: 5: 3515: 3513: 3505: 3504: 3499: 3494: 3489: 3484: 3474: 3473: 3467: 3466: 3423: 3420: 3419: 3416: 3414: 3405: 3404: 3402: 3401: 3396: 3391: 3386: 3380: 3378: 3369: 3368: 3365: 3364: 3362: 3361: 3356: 3351: 3346: 3340: 3338: 3329: 3328: 3326: 3325: 3320: 3315: 3309: 3307: 3298: 3297: 3295: 3294: 3289: 3284: 3278: 3276: 3264: 3254: 3253: 3250: 3249: 3247: 3246: 3241: 3236: 3231: 3225: 3223: 3214: 3213: 3211: 3210: 3205: 3200: 3194: 3192: 3183: 3182: 3180: 3179: 3174: 3169: 3164: 3158: 3156: 3147: 3146: 3144: 3143: 3138: 3133: 3127: 3125: 3116: 3115: 3113: 3112: 3107: 3101: 3099: 3094:Carboniferous 3090: 3089: 3087: 3086: 3081: 3076: 3070: 3068: 3056: 3046: 3045: 3042: 3041: 3039: 3038: 3033: 3028: 3022: 3020: 3011: 3010: 3008: 3007: 3002: 2997: 2991: 2989: 2980: 2979: 2977: 2976: 2971: 2965: 2963: 2951: 2941: 2940: 2937: 2936: 2934: 2933: 2928: 2923: 2917: 2915: 2912:(23.0–66.0 Ma) 2906: 2905: 2903: 2902: 2897: 2891: 2889: 2886:(2.58–23.0 Ma) 2880: 2879: 2877: 2876: 2871: 2865: 2863: 2851: 2841: 2840: 2835: 2833: 2832: 2825: 2818: 2810: 2801: 2800: 2796: 2795: 2793: 2792: 2787: 2782: 2777: 2772: 2767: 2762: 2757: 2751: 2749: 2747: 2746: 2741: 2736: 2730: 2727: 2726: 2724:Holocene Epoch 2721: 2713: 2710: 2709: 2704: 2702: 2701: 2694: 2687: 2679: 2671: 2670: 2593: 2567: 2515: 2480:(3): 367–395. 2460: 2392: 2344: 2297: 2278:(1): 176–189. 2258: 2193: 2158: 2146: 2121: 2055: 1997: 1938: 1890: 1826: 1758: 1693: 1671: 1625: 1567: 1560: 1534: 1508: 1475: 1453: 1412: 1385: 1384: 1382: 1379: 1378: 1377: 1372: 1367: 1360: 1357: 1354: 1353: 1344: 1337: 1332: 1328: 1327: 1308: 1303: 1300: 1296: 1295: 1286: 1283: 1280: 1276: 1275: 1256: 1254: 1251: 1247: 1246: 1241: 1238: 1233: 1229: 1228: 1215: 1212: 1208: 1207: 1198:Swanscombe Man 1195: 1185: 1180: 1176: 1175: 1163: 1154: 1151: 1147: 1146: 1134: 1128: 1123: 1119: 1118: 1115: 1111: 1110: 1098:Heidelberg Man 1095: 1090: 1087: 1083: 1082: 1079: 1075: 1074: 1071: 1067: 1066: 1063: 1059: 1058: 1046: 1041: 1038: 1034: 1033: 1030: 1027: 1024: 995: 992: 946: 943: 921:American bison 883:woolly mammoth 834: 831: 790:glacial cycles 781: 778: 765: 762: 657: 656: 653: 649: 648: 645: 641: 640: 637: 633: 632: 629: 625: 624: 584: 580: 579: 572: 568: 567: 564: 560: 559: 554: 550: 549: 544: 540: 539: 535: 534: 533:ICS Time Scale 531: 527: 526: 519: 518:Regional usage 515: 514: 509: 508:Celestial body 505: 504: 500: 499: 489: 485: 484: 481: 477: 476: 473: 472:Name formality 469: 468: 464: 463: 459: 458: 446: 443: 442: 439: 438: 433: 431: 422: 417: 416: 415: 410: 409: 408: 403: 402: 401: 396: 395: 394: 389: 388: 387: 382: 381: 380: 367: 366: 365: 356: 355: 354: 345: 344: 343: 334: 333: 332: 323: 322: 321: 316: 315: 314: 305: 304: 303: 294: 293: 292: 281: 280: 279: 270: 269: 268: 257: 256: 255: 253: 250:0 — 248: 243: 238: 233: 228: 223: 218: 213: 208: 203: 198: 193: 188: 183: 178: 173: 168: 163: 158: 153: 148: 143: 138: 133: 128: 123: 118: 113: 110: 109: 105: 104: 97: 96: 95: 90: 85: 80: 75: 70: 65: 60: 55: 50: 45: 40: 35: 34: 24: 23: 15: 13: 10: 9: 6: 4: 3: 2: 3514: 3503: 3500: 3498: 3495: 3493: 3490: 3488: 3485: 3483: 3480: 3479: 3477: 3464: 3459: 3453: 3448: 3442: 3439: 3434: 3430: 3426: 3421: 3415: 3413: 3406: 3400: 3397: 3395: 3392: 3390: 3387: 3385: 3382: 3381: 3379: 3377: 3370: 3360: 3357: 3355: 3352: 3350: 3347: 3345: 3342: 3341: 3339: 3337: 3330: 3324: 3321: 3319: 3316: 3314: 3311: 3310: 3308: 3306: 3299: 3293: 3290: 3288: 3285: 3283: 3280: 3279: 3277: 3275: 3273:(539 Ma–1 Ga) 3268: 3265: 3263: 3255: 3245: 3242: 3240: 3237: 3235: 3232: 3230: 3227: 3226: 3224: 3222: 3215: 3209: 3206: 3204: 3201: 3199: 3196: 3195: 3193: 3191: 3184: 3178: 3175: 3173: 3170: 3168: 3165: 3163: 3160: 3159: 3157: 3155: 3148: 3142: 3139: 3137: 3134: 3132: 3129: 3128: 3126: 3124: 3117: 3111: 3108: 3106: 3103: 3102: 3100: 3098: 3091: 3085: 3082: 3080: 3077: 3075: 3072: 3071: 3069: 3067: 3060: 3057: 3055: 3050:Paleozoic Era 3047: 3037: 3034: 3032: 3029: 3027: 3024: 3023: 3021: 3019: 3012: 3006: 3003: 3001: 2998: 2996: 2993: 2992: 2990: 2988: 2981: 2975: 2972: 2970: 2967: 2966: 2964: 2962: 2960:(66.0–145 Ma) 2955: 2952: 2950: 2948:(66.0–252 Ma) 2942: 2932: 2929: 2927: 2924: 2922: 2919: 2918: 2916: 2914: 2907: 2901: 2898: 2896: 2893: 2892: 2890: 2888: 2881: 2875: 2872: 2870: 2867: 2866: 2864: 2862: 2855: 2852: 2850: 2842: 2838: 2831: 2826: 2824: 2819: 2817: 2812: 2811: 2808: 2791: 2788: 2786: 2783: 2781: 2778: 2776: 2773: 2771: 2768: 2766: 2763: 2761: 2760:Northgrippian 2758: 2756: 2753: 2752: 2750: 2745: 2742: 2740: 2737: 2735: 2732: 2731: 2729: 2728: 2725: 2722: 2720: 2717: 2716: 2711: 2707: 2700: 2695: 2693: 2688: 2686: 2681: 2680: 2677: 2666: 2662: 2657: 2652: 2648: 2644: 2639: 2634: 2629: 2624: 2620: 2616: 2612: 2608: 2604: 2597: 2594: 2582: 2578: 2571: 2568: 2562: 2558: 2554: 2550: 2546: 2542: 2538: 2534: 2530: 2526: 2519: 2516: 2511: 2507: 2503: 2499: 2495: 2491: 2487: 2483: 2479: 2475: 2471: 2464: 2461: 2456: 2452: 2447: 2442: 2438: 2434: 2429: 2424: 2420: 2416: 2412: 2408: 2404: 2396: 2393: 2388: 2384: 2380: 2376: 2372: 2368: 2364: 2360: 2356: 2348: 2345: 2340: 2336: 2332: 2328: 2324: 2320: 2316: 2312: 2308: 2301: 2298: 2293: 2289: 2285: 2281: 2277: 2273: 2269: 2262: 2259: 2247: 2243: 2239: 2235: 2231: 2227: 2223: 2219: 2215: 2211: 2207: 2200: 2198: 2194: 2189: 2185: 2181: 2177: 2173: 2169: 2162: 2159: 2149: 2143: 2139: 2135: 2128: 2126: 2122: 2117: 2113: 2109: 2105: 2100: 2095: 2091: 2087: 2083: 2079: 2075: 2071: 2067: 2059: 2056: 2043: 2038: 2034: 2030: 2026: 2022: 2018: 2014: 2013: 2008: 2001: 1998: 1985: 1980: 1976: 1972: 1968: 1964: 1960: 1956: 1955: 1950: 1942: 1939: 1927: 1923: 1919: 1915: 1911: 1907: 1906: 1901: 1894: 1891: 1879: 1875: 1871: 1867: 1863: 1859: 1855: 1851: 1847: 1843: 1842: 1837: 1830: 1827: 1822: 1818: 1813: 1808: 1804: 1800: 1795: 1790: 1786: 1782: 1778: 1774: 1770: 1762: 1759: 1754: 1750: 1746: 1742: 1737: 1732: 1728: 1724: 1720: 1716: 1712: 1708: 1704: 1697: 1694: 1681: 1675: 1672: 1660: 1656: 1652: 1648: 1644: 1640: 1636: 1629: 1626: 1621: 1617: 1613: 1609: 1605: 1601: 1597: 1593: 1589: 1585: 1578: 1571: 1568: 1563: 1561:9780521786737 1557: 1553: 1548: 1547: 1538: 1535: 1519: 1512: 1509: 1497: 1493: 1489: 1482: 1480: 1476: 1463: 1457: 1454: 1442: 1438: 1434: 1430: 1423: 1416: 1413: 1397: 1390: 1387: 1380: 1376: 1373: 1371: 1368: 1366: 1363: 1362: 1358: 1352: 1348: 1345: 1342: 1338: 1336: 1333: 1330: 1329: 1326: 1322: 1318: 1317: 1312: 1309: 1307: 1304: 1301: 1298: 1297: 1294: 1290: 1287: 1284: 1281: 1278: 1277: 1274: 1270: 1266: 1265: 1260: 1257: 1255: 1252: 1249: 1248: 1245: 1242: 1239: 1237: 1234: 1231: 1230: 1227: 1223: 1219: 1216: 1213: 1210: 1209: 1205: 1204: 1199: 1196: 1193: 1189: 1186: 1184: 1181: 1178: 1177: 1173: 1172: 1167: 1164: 1162: 1158: 1157:Anglian Stage 1155: 1152: 1149: 1148: 1144: 1143: 1138: 1135: 1133: 1129: 1127: 1124: 1121: 1120: 1116: 1113: 1112: 1109: 1105: 1104: 1099: 1096: 1094: 1091: 1088: 1085: 1084: 1080: 1077: 1076: 1072: 1069: 1068: 1064: 1061: 1060: 1056: 1055: 1050: 1047: 1045: 1042: 1039: 1036: 1035: 1031: 1028: 1026:paleoclimate 1025: 1022: 1021: 1017: 1011: 1007: 1001: 993: 991: 989: 985: 984: 979: 978: 972: 970: 966: 965: 960: 956: 952: 944: 942: 940: 936: 935: 930: 929:Rancholabrean 926: 922: 918: 914: 910: 909: 904: 903:Mesotheriidae 900: 896: 892: 888: 884: 880: 878: 872: 868: 867: 862: 858: 854: 853: 852:Palaeoloxodon 848: 847: 842: 841: 832: 830: 828: 824: 820: 815: 812: 810: 805: 803: 799: 795: 791: 787: 779: 777: 775: 771: 763: 761: 759: 755: 751: 746: 744: 740: 736: 732: 728: 724: 719: 718:over 300 ka. 717: 713: 709: 705: 701: 697: 693: 689: 685: 681: 677: 673: 663: 654: 650: 646: 642: 638: 634: 630: 626: 621: 592: 588: 585: 581: 577: 573: 569: 565: 561: 558: 555: 551: 548: 545: 541: 536: 532: 528: 524: 520: 516: 513: 510: 506: 501: 497: 493: 490: 486: 482: 480:Name ratified 478: 474: 470: 465: 453: 452:, as of 2021. 451: 444: 436: 432: 427: 426: 423: 375: 373: 360: 349: 338: 328: 309: 298: 288: 286: 275: 274: 264: 262: 254: 117: 116: 111: 106: 93: 88: 83: 78: 73: 68: 63: 58: 53: 48: 43: 38: 32: 25: 20: 3437: 3373:Archean Eon 3335:(1.6–2.5 Ga) 3220:(485–539 Ma) 3189:(444–485 Ma) 3153:(419–444 Ma) 3122:(359–419 Ma) 3096:(299–359 Ma) 3065:(252–299 Ma) 3053:(252–539 Ma) 3017:(201–252 Ma) 2986:(145–201 Ma) 2945:Mesozoic Era 2845:Cenozoic Era 2765:Greenlandian 2638:1887/3674398 2613:(1): 19766. 2610: 2606: 2596: 2584:. Retrieved 2581:ScienceAlert 2580: 2570: 2528: 2524: 2518: 2477: 2473: 2463: 2410: 2406: 2395: 2362: 2358: 2347: 2314: 2310: 2300: 2275: 2271: 2261: 2249:. Retrieved 2213: 2209: 2171: 2161: 2151:, retrieved 2137: 2099:10995/118212 2073: 2069: 2058: 2046:. Retrieved 2016: 2010: 2000: 1988:. Retrieved 1958: 1952: 1941: 1929:. Retrieved 1909: 1903: 1893: 1881:. Retrieved 1845: 1839: 1829: 1776: 1772: 1761: 1710: 1706: 1696: 1684:. Retrieved 1674: 1662:. Retrieved 1642: 1638: 1628: 1587: 1583: 1570: 1545: 1537: 1525:. Retrieved 1511: 1499:. Retrieved 1491: 1466:. Retrieved 1456: 1444:. Retrieved 1432: 1428: 1415: 1403:. Retrieved 1389: 1316:Homo sapiens 1314: 1264:Homo sapiens 1262: 1201: 1171:Homo erectus 1169: 1166:Tautavel Man 1159:in Britain; 1140: 1137:Boxgrove Man 1108:Bodo cranium 1101: 1054:Homo erectus 1052: 981: 977:Castor fiber 975: 973: 962: 948: 932: 917:steppe bison 913:Toxodontidae 906: 899:notoungulate 894: 890: 886: 877:Pachycrocuta 875: 871:gomphotheres 866:Sinomastodon 864: 860: 850: 844: 838: 836: 816: 813: 806: 802:interglacial 783: 767: 747: 720: 675: 671: 669: 631:January 2020 495: 491: 483:January 2020 447: 371: 358: 282: 271: 258: 3487:Pleistocene 3409:Hadean Eon 3187:Ordovician 2958:Cretaceous 2858:Quaternary 2790:Subatlantic 2042:11343/52678 2019:: 470–481. 1961:(1): 3170. 1883:26 February 1736:1874/412413 1686:13 November 1664:13 November 1527:23 February 1468:26 December 1446:11 November 1405:23 February 1289:Galilee Man 1192:Yarmouthian 1190:(Britain), 1029:glaciation 908:Mesotherium 829:formation. 794:periodicity 696:Pleistocene 615: / 603:140°08′47″E 308:Pleistocene 3476:Categories 3411:(4–4.6 Ga) 3375:(2.5–4 Ga) 3304:(1–1.6 Ga) 2910:Paleogene 2755:Meghalayan 2365:: 107925. 2317:: 107693. 2153:2020-04-14 1912:: 110967. 1501:31 January 1381:References 1325:Mousterian 1299:191–130 ka 1293:Haua Fteah 1279:243–191 ka 1250:300–243 ka 1244:Mousterian 1232:337–300 ka 1211:374–337 ka 1179:424–374 ka 1150:474–424 ka 1122:524–474 ka 1114:563–524 ka 1086:621–563 ka 1078:676–621 ka 1070:712–676 ka 1062:761–712 ka 1049:Peking Man 1037:790–761 ka 994:Chronology 700:Quaternary 600:35°17′39″N 538:Definition 488:Synonym(s) 326:Piacenzian 285:Quaternary 108:Chronology 3438:See also: 3218:Cambrian 3151:Silurian 3120:Devonian 3015:Triassic 2984:Jurassic 2785:Subboreal 2770:Preboreal 2647:2045-2322 2561:205255853 2510:130080167 2502:1867-1594 2437:0027-8424 2387:254913691 2339:252264887 2251:21 August 2246:235712060 2108:0962-1083 1975:2045-2322 1878:240358493 1870:1752-0908 1803:0027-8424 1753:236386405 1745:8755-1209 1311:Herto Man 953:from the 727:Tarantian 723:Calabrian 710:from the 672:Chibanian 467:Etymology 359:Chibanian 348:Calabrian 22:Chibanian 3063:Permian 2884:Neogene 2780:Atlantic 2665:37957223 2656:10643649 2553:28593967 2455:28289222 2238:34211141 2116:33971056 1821:29180424 1612:23344358 1429:Episodes 1359:See also 1339:peak of 1259:Irhoud 1 754:Gelasian 521:Global ( 435:Holocene 337:Gelasian 261:Cenozoic 2615:Bibcode 2533:Bibcode 2482:Bibcode 2446:5380047 2415:Bibcode 2367:Bibcode 2319:Bibcode 2280:Bibcode 2218:Bibcode 2176:Bibcode 2078:Bibcode 2048:23 June 2021:Bibcode 1990:28 July 1984:8873222 1914:Bibcode 1850:Bibcode 1812:5740680 1781:Bibcode 1715:Bibcode 1647:Bibcode 1620:4420908 1592:Bibcode 1351:Sangoan 1188:Hoxnian 1130:end of 1117:MIS 14 1081:MIS 16 1073:MIS 17 1065:MIS 18 988:beavers 957:to the 901:family 780:Climate 714:to the 429:← 245:– 235:– 225:– 215:– 205:– 195:– 185:– 175:– 165:– 155:– 145:– 135:– 125:– 98:↓ 3417:  2775:Boreal 2739:Middle 2663:  2653:  2645:  2586:5 June 2559:  2551:  2525:Nature 2508:  2500:  2453:  2443:  2435:  2385:  2337:  2244:  2236:  2144:  2114:  2106:  1981:  1973:  1931:4 July 1876:  1868:  1819:  1809:  1801:  1751:  1743:  1618:  1610:  1584:Nature 1558:  1341:Eemian 1335:MIS 5e 1214:MIS 10 1183:MIS 11 1153:MIS 12 1126:MIS 13 1089:MIS 15 1040:MIS 19 833:Events 809:Levant 566:Formal 496:Ionian 475:Formal 418:  411:  404:  397:  390:  383:  317:  2734:Early 2557:S2CID 2506:S2CID 2383:S2CID 2335:S2CID 2242:S2CID 1874:S2CID 1749:S2CID 1713:(2). 1616:S2CID 1580:(PDF) 1521:(PDF) 1425:(PDF) 1399:(PDF) 1302:MIS 6 1282:MIS 7 1253:MIS 8 1236:MIS 9 955:Lower 823:reefs 712:Lower 688:stage 686:or a 591:Japan 587:Chiba 557:Stage 512:Earth 2744:Late 2661:PMID 2643:ISSN 2588:2019 2549:PMID 2498:ISSN 2451:PMID 2433:ISSN 2253:2021 2234:PMID 2142:ISBN 2112:PMID 2104:ISSN 2050:2024 1992:2024 1971:ISSN 1933:2024 1885:2024 1866:ISSN 1817:PMID 1799:ISSN 1741:ISSN 1688:2019 1666:2019 1608:PMID 1556:ISBN 1529:2020 1503:2020 1470:2020 1448:2019 1407:2020 1319:); 1023:Age 1008:and 768:The 670:The 655:None 372:Late 37:PreꞒ 2651:PMC 2633:hdl 2623:doi 2541:doi 2529:546 2490:doi 2441:PMC 2423:doi 2411:114 2375:doi 2363:301 2327:doi 2315:294 2288:doi 2276:179 2226:doi 2214:355 2184:doi 2094:hdl 2086:doi 2037:hdl 2029:doi 1979:PMC 1963:doi 1922:doi 1910:595 1858:doi 1807:PMC 1789:doi 1777:114 1731:hdl 1723:doi 1655:doi 1600:doi 1588:493 1437:doi 1267:); 1106:), 969:DNA 745:). 690:in 680:age 547:Age 523:ICS 450:ICS 3478:: 3433:Ga 3429:Ma 3425:ka 2659:. 2649:. 2641:. 2631:. 2621:. 2611:13 2609:. 2605:. 2579:. 2555:. 2547:. 2539:. 2527:. 2504:. 2496:. 2488:. 2478:92 2476:. 2472:. 2449:. 2439:. 2431:. 2421:. 2409:. 2405:. 2381:. 2373:. 2361:. 2357:. 2333:. 2325:. 2313:. 2309:. 2286:. 2274:. 2270:. 2240:. 2232:. 2224:. 2212:. 2208:. 2196:^ 2182:. 2170:. 2136:, 2124:^ 2110:. 2102:. 2092:. 2084:. 2074:30 2072:. 2068:. 2035:. 2027:. 2017:57 2015:. 2009:. 1977:. 1969:. 1959:12 1957:. 1951:. 1920:. 1908:. 1902:. 1872:. 1864:. 1856:. 1846:14 1844:. 1838:. 1815:. 1805:. 1797:. 1787:. 1775:. 1771:. 1747:. 1739:. 1729:. 1721:. 1711:59 1709:. 1705:. 1653:. 1643:56 1637:. 1614:. 1606:. 1598:. 1586:. 1582:. 1554:. 1552:28 1494:. 1490:. 1478:^ 1433:41 1431:. 1427:. 1349:; 1323:; 1291:; 1271:; 1224:, 1220:, 1206:) 1174:) 1145:) 1057:) 905:, 704:Ma 589:, 297:PC 87:Pg 31:Ma 2829:e 2822:t 2815:v 2698:e 2691:t 2684:v 2667:. 2635:: 2625:: 2617:: 2590:. 2565:. 2563:. 2543:: 2535:: 2512:. 2492:: 2484:: 2457:. 2425:: 2417:: 2389:. 2377:: 2369:: 2341:. 2329:: 2321:: 2294:. 2290:: 2282:: 2228:: 2220:: 2190:. 2186:: 2178:: 2118:. 2096:: 2088:: 2080:: 2039:: 2031:: 2023:: 1994:. 1965:: 1924:: 1916:: 1887:. 1860:: 1852:: 1823:. 1791:: 1783:: 1755:. 1733:: 1725:: 1717:: 1690:. 1668:. 1657:: 1649:: 1622:. 1602:: 1594:: 1564:. 1531:. 1505:. 1472:. 1450:. 1439:: 1409:. 1313:( 1261:( 1200:( 1168:( 1139:( 1100:( 1051:( 885:( 879:. 859:( 525:) 374:" 370:" 273:N 92:N 82:K 77:J 72:T 67:P 62:C 57:D 52:S 47:O 42:Ꞓ

Index

Ma
PreꞒ

O
S
D
C
P
T
J
K
Pg
N
Cenozoic
N
Quaternary
PC
Pleistocene
Piacenzian
Gelasian
Calabrian
Chibanian
"Late"
Holocene
ICS
Earth
ICS
Age
Stage
Brunhes-Matuyama

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