Knowledge

Clarkforkian

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Wilf, Peter; Beard, K. Christopher; Davies-Vollum, K. Sian; Norejko, Jay W. (December 1998). "Portrait of a Late Paleocene (Early Clarkforkian) Terrestrial Ecosystem: Big Multi Quarry and Associated Strata, Washakie Basin, Southwestern Wyoming".
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Cf3: (shares the upper boundary) and lower boundary source of the base of Clarkforkian (approximate) and upper boundary source of the base of the
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Rose, Kenneth D. (1981). "The Clarkforkian Land-Mammal Age and Mammalian Faunal Composition Across the Paleocene-Eocene Boundary".
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Cf2: Is the lower boundary source of the base of the Clarkforkian (approximate)
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chronology (NALMA), typically set from 56,800,000 to 55,400,000 years
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Cf1: Upper boundary source of the base of the Ypresian (approximate)
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It is considered to contain the following substages:
155:- carnivores, including living carnivorous mammals 749: 732: 571: 739: 725: 578: 564: 491: 235:- extinct group of carnivorous mammals 750: 559: 691: 585: 481: 64:The Clarkforkian is preceded by the 471:Paleobiology Database, Clarkforkian 444:- medium sized, digging herbivores 13: 768:Paleocene animals of North America 103: 14: 784: 21:Clarkforkian North American Stage 695: 33:North American Land Mammal Ages 500: 475: 464: 1: 457: 304:- carnivorous hoofed mammals 711:. You can help Knowledge by 405:, plesiadapid plesiadapiform 325:- large herbivorous mammals 75: 49:Considered to be within the 7: 257:- large, tusked herbivores 16:North American faunal stage 10: 789: 690: 295:, nyctitheriid insectivore 287:, nyctitheriid insectivore 210:, phenacodontid condylarth 593: 359:- primates and relatives 27:, is the North American 278:- insectivorous mammals 98: 53:, more specifically the 453:, esthonychid tillodont 266:, early North American 484:Papers on Paleontology 146:, peradectid marsupial 115:- non-therian mammals 435:, ischyromyid rodent 177:- archaic ungulates 68:and followed by the 773:Geochronology stubs 522:1998Palai..13..514W 25:geologic timescale 720: 719: 685: 684: 680: 679: 350:, large pantodont 31:according to the 780: 741: 734: 727: 699: 692: 596: 595: 587:Paleogene Period 580: 573: 566: 557: 556: 550: 549: 504: 498: 497: 495: 479: 473: 468: 128:multituberculate 112:Multituberculata 45: 788: 787: 783: 782: 781: 779: 778: 777: 748: 747: 746: 745: 688: 686: 681: 676: 660: 634: 610:Oligocene Epoch 600:Paleocene Epoch 589: 584: 554: 553: 530:10.2307/3515344 505: 501: 480: 476: 469: 465: 460: 342:-like pantodont 126:neoplagiaulacid 106: 104:Notable mammals 101: 78: 40: 17: 12: 11: 5: 786: 776: 775: 770: 765: 763:Paleocene life 760: 744: 743: 736: 729: 721: 718: 717: 700: 683: 682: 678: 677: 675: 674: 669: 663: 661: 659: 658: 653: 648: 643: 637: 635: 633: 632: 627: 622: 616: 613: 612: 607: 602: 594: 591: 590: 583: 582: 575: 568: 560: 552: 551: 499: 474: 462: 461: 459: 456: 455: 454: 437: 436: 428: 407: 406: 398: 397:plesiadapiform 386: 375: 373:plesiadapiform 352: 351: 343: 318: 317: 297: 296: 288: 284:Plagioctenodon 271: 270: 250: 249: 228: 227: 211: 203: 191: 170: 169: 148: 147: 130: 129: 105: 102: 100: 97: 96: 95: 92: 89: 88:(approximate). 77: 74: 72:NALMA stages. 55:Late Paleocene 15: 9: 6: 4: 3: 2: 785: 774: 771: 769: 766: 764: 761: 759: 756: 755: 753: 742: 737: 735: 730: 728: 723: 722: 716: 714: 710: 707:article is a 706: 705:geochronology 701: 698: 694: 693: 689: 673: 670: 668: 665: 664: 662: 657: 654: 652: 649: 647: 644: 642: 639: 638: 636: 631: 628: 626: 623: 621: 618: 617: 615: 614: 611: 608: 606: 603: 601: 598: 597: 592: 588: 581: 576: 574: 569: 567: 562: 561: 558: 547: 543: 539: 535: 531: 527: 523: 519: 515: 511: 503: 494: 493:2027.42/48626 489: 485: 478: 472: 467: 463: 452: 451: 447: 446: 445: 443: 442: 434: 433: 429: 426: 422: 421: 417: 416: 415: 413: 412: 404: 403: 399: 396: 392: 391: 387: 385: 381: 380: 376: 374: 371: 367: 366: 362: 361: 360: 358: 357: 349: 348: 344: 341: 337: 333: 332: 328: 327: 326: 324: 323: 316: 312: 311: 307: 306: 305: 303: 302: 294: 293: 289: 286: 285: 281: 280: 279: 277: 276: 269: 265: 264: 263:Probathyopsis 260: 259: 258: 256: 255: 247: 243: 242: 238: 237: 236: 234: 233: 225: 221: 217: 216: 212: 209: 208: 204: 201: 200:phenacodontid 197: 196: 192: 189: 185: 184: 180: 179: 178: 176: 175: 167: 163: 162: 158: 157: 156: 154: 153: 145: 144: 140: 139: 138: 137:- marsupials 136: 135: 127: 123: 122: 118: 117: 116: 114: 113: 108: 93: 90: 87: 83: 82: 81: 73: 71: 67: 62: 60: 56: 52: 47: 44:million years 43: 38: 34: 30: 26: 22: 758:Clarkforkian 713:expanding it 702: 687: 605:Eocene Epoch 513: 509: 502: 483: 477: 466: 448: 439: 438: 430: 418: 409: 408: 400: 390:Phenacolemur 388: 379:Chiromyoides 377: 363: 356:Primatomopha 354: 353: 345: 336:semi-aquatic 329: 320: 319: 313:, dog-sized 308: 299: 298: 290: 282: 275:Eulipotyphla 273: 272: 261: 252: 251: 239: 230: 229: 215:Thryptacodon 213: 205: 193: 188:hyopsodontid 181: 174:Condylarthra 173: 171: 159: 150: 149: 141: 132: 131: 119: 110: 109: 107: 79: 63: 48: 29:faunal stage 20: 18: 441:Tillodontia 402:Plesiadapis 384:plesiadapid 370:carpolestid 365:Carpolestes 292:Wyonycteris 224:arctocyonid 752:Categories 656:Priabonian 516:(6): 514. 458:References 414:- rodents 395:paromomyid 347:Titanoides 331:Coryphodon 322:Pantodonta 315:mesonychid 301:Mesonychia 268:uintathere 254:Dinocerata 226:condylarth 207:Phenacodus 202:condylarth 190:condylarth 183:Apheliscus 168:carnivoran 166:viverravid 161:Didymictis 143:Peradectes 134:Metatheria 70:Wasatchian 651:Bartonian 630:Thanetian 625:Selandian 538:0883-1351 425:alagomyid 232:Creodonta 152:Carnivora 121:Ectypodus 76:Substages 66:Tiffanian 59:Thanetian 51:Paleocene 23:, on the 672:Chattian 667:Rupelian 646:Lutetian 641:Ypresian 450:Esthonyx 420:Alagomys 411:Rodentia 382:, small 310:Dissacus 248:creodont 246:arboreal 195:Ectocion 86:Ypresian 39:lasting 546:3515344 518:Bibcode 510:PALAIOS 432:Paramys 244:, semi- 241:Oxyaena 220:raccoon 620:Danian 544:  536:  427:rodent 222:-like 703:This 542:JSTOR 340:hippo 99:Fauna 709:stub 534:ISSN 19:The 526:doi 488:hdl 42:1.4 754:: 540:. 532:. 524:. 514:13 512:. 486:. 423:, 393:, 368:, 338:, 334:, 218:, 198:, 186:, 164:, 124:, 61:. 46:. 37:BP 740:e 733:t 726:v 715:. 579:e 572:t 565:v 548:. 528:: 520:: 496:. 490::

Index

geologic timescale
faunal stage
North American Land Mammal Ages
BP
1.4
Paleocene
Late Paleocene
Thanetian
Tiffanian
Wasatchian
Ypresian
Multituberculata
Ectypodus
neoplagiaulacid
Metatheria
Peradectes
Carnivora
Didymictis
viverravid
Condylarthra
Apheliscus
hyopsodontid
Ectocion
phenacodontid
Phenacodus
Thryptacodon
raccoon
arctocyonid
Creodonta
Oxyaena

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