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Qaisracetus

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is known from a dozen specimens, all found in or near the type locality. Among them are several well-preserved elements, including a well-preserved skull, partial skulls and braincases, several vertebrae including an almost complete sacrum, a left innominate, ribs, and partial limb elements.
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Baloch tribe which assisted Gingerich and his team during their field work. "Qaisra" is also etymologically close to the royal title used in Persian and many Indo-European languages (e.g. Kaiser, Czar, Caesar). The species is named for Muhammad Arif, former paleontologist at the
437:, the most complete articulated skeleton of a protocetid, and they were similar in size: the latter had an estimated body weight of 620 kg (1,370 lb), compared to 590 kg (1,300 lb) for the former. 688:
Gingerich, Philip D; Haq, U; Khan, H; Zalmout, S (2001). "Eocene stratigraphy and archaeocete whales (Mammalia, Cetacea) of Drug Lahar in the eastern Sulaiman range, Balochistan (Pakistan)".
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The four sacral vertebrae are only partially fused: the first two are solidly fused, the third is locked in place by rib-like processes (a
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indicate protocetids represent a wide range of specializations, although which is ancestral to later whales is unclear.
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in retaining pleurapophyseal connections between all sacral vertebrae. The sacral morphology of
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located relatively anteriorly (above C) and a relatively broad frontal shield. The
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who contributed significantly to archaeocete paleontology in Pakistan.
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Contributions from the Museum of Paleontology, University of Michigan
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has a sacrum where non of the vertebrae have fused centra, which is
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has a generalized protocetid skull with the external
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Retrieved July 2013. 299:48.6 to 40.4 1420:Paleobiology Database 672:Gingerich et al. 2001 660:Gingerich et al. 2001 645:Gingerich et al. 2001 630:Gingerich et al. 2001 618:Gingerich et al. 2001 606:Gingerich et al. 2001 591:Paleobiology Database 573:Paleobiology Database 266:Gingerich et al. 2001 241:Gingerich et al. 2001 555:Notes and references 513:' vertebrae are not 647:, Diagnosis, p. 296 620:, Etymology, p. 298 608:, Etymology, p. 296 357: /  342:, paleocoordinates 326: /  632:, Hypodigm, p. 297 523:. In contrast to 451:is more narrow in 1435: 1434: 1407:Open Tree of Life 1321:Taxon identifiers 1312: 1311: 1290: 1289: 1112: 1111: 864:Remingtonocetidae 473:chevron processes 428:Qaisracetus arifi 301:million years ago 274: 273: 268: 243: 1470: 1428: 1427: 1415: 1414: 1402: 1401: 1389: 1388: 1376: 1375: 1363: 1362: 1361: 1348: 1347: 1346: 1316: 1302: 1301: 1123: 917: 751:genera by family 742: 735: 728: 719: 713: 675: 669: 663: 657: 648: 642: 633: 627: 621: 615: 609: 603: 594: 582: 576: 564: 420:but larger than 408:is smaller than 372: 371: 369: 368: 367: 362: 358: 355: 354: 353: 350: 341: 340: 338: 337: 336: 331: 327: 324: 323: 322: 319: 302: 264: 257: 239: 232: 219: 206: 136: 135: 113: 103: 40: 29:Temporal range: 21: 16:Genus of mammals 1478: 1477: 1473: 1472: 1471: 1469: 1468: 1467: 1438: 1437: 1436: 1431: 1423: 1418: 1410: 1405: 1397: 1392: 1384: 1379: 1371: 1366: 1357: 1356: 1351: 1342: 1341: 1336: 1323: 1313: 1308: 1286: 1245: 1211: 1108: 997: 977: 906: 901:Remingtonocetus 858: 824: 790: 752: 746: 716: 696:(11): 269–319. 687: 683: 678: 670: 666: 658: 651: 643: 636: 628: 624: 616: 612: 604: 597: 583: 579: 565: 561: 557: 515:dense and thick 466:pleurapophyseal 396: 379: 365: 363: 359: 356: 351: 348: 346: 344: 343: 334: 332: 328: 325: 320: 317: 315: 313: 312: 297: 288:known from the 263: 238: 230: 217: 204: 130: 104: 102: 101: 96: 91: 86: 81: 76: 71: 66: 61: 56: 51: 46: 36:48.6–40.4  35: 34: 27: 17: 12: 11: 5: 1476: 1474: 1466: 1465: 1460: 1455: 1450: 1440: 1439: 1433: 1432: 1430: 1429: 1416: 1403: 1390: 1377: 1364: 1349: 1333: 1331: 1325: 1324: 1319: 1310: 1309: 1307: 1306: 1295: 1292: 1291: 1288: 1287: 1285: 1284: 1277: 1270: 1263: 1255: 1253: 1247: 1246: 1244: 1243: 1236: 1229: 1221: 1219: 1217:Basilosaurinae 1213: 1212: 1210: 1209: 1202: 1195: 1188: 1181: 1174: 1167: 1160: 1153: 1146: 1139: 1131: 1129: 1120: 1118:Basilosauridae 1114: 1113: 1110: 1109: 1107: 1106: 1099: 1092: 1085: 1078: 1071: 1064: 1057: 1050: 1043: 1036: 1029: 1022: 1015: 1007: 1005: 999: 998: 996: 995: 987: 985: 979: 978: 976: 975: 968: 961: 954: 947: 940: 933: 925: 923: 921:Georgiacetinae 914: 908: 907: 905: 904: 897: 890: 883: 876: 868: 866: 860: 859: 857: 856: 849: 842: 834: 832: 826: 825: 823: 822: 815: 808: 800: 798: 792: 791: 789: 788: 782: 776: 770: 764: 757: 754: 753: 747: 745: 744: 737: 730: 722: 715: 714: 684: 682: 679: 677: 676: 664: 649: 634: 622: 610: 595: 577: 558: 556: 553: 395: 392: 378: 375: 281:is an extinct 272: 271: 270: 269: 250: 249: 245: 244: 228: 224: 223: 215: 211: 210: 202: 198: 197: 192: 188: 187: 182: 178: 177: 172: 168: 167: 162: 158: 157: 152: 148: 147: 142: 138: 137: 124: 123: 115: 114: 106: 105: 97: 92: 87: 82: 77: 72: 67: 62: 57: 52: 47: 42: 41: 28: 15: 13: 10: 9: 6: 4: 3: 2: 1475: 1464: 1461: 1459: 1456: 1454: 1451: 1449: 1446: 1445: 1443: 1426: 1421: 1417: 1413: 1408: 1404: 1400: 1395: 1391: 1387: 1382: 1378: 1374: 1369: 1365: 1360: 1354: 1350: 1345: 1339: 1335: 1334: 1332: 1330: 1326: 1322: 1317: 1305: 1297: 1296: 1293: 1283: 1282: 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869: 867: 865: 861: 855: 854: 853:Himalayacetus 850: 848: 847: 843: 841: 840: 836: 835: 833: 831: 830:Ambulocetidae 827: 821: 820: 819:Ichthyolestes 816: 814: 813: 809: 807: 806: 802: 801: 799: 797: 793: 787: 783: 781: 777: 775: 771: 769: 765: 763: 759: 758: 755: 750: 743: 738: 736: 731: 729: 724: 723: 720: 711: 707: 703: 702:2027.42/48661 699: 695: 691: 686: 685: 680: 673: 668: 665: 661: 656: 654: 650: 646: 641: 639: 635: 631: 626: 623: 619: 614: 611: 607: 602: 600: 596: 592: 588: 587: 581: 578: 574: 570: 569: 563: 560: 554: 552: 550: 546: 542: 538: 534: 530: 526: 522: 521: 516: 512: 508: 507: 502: 501: 496: 495: 490: 489: 484: 483: 478: 474: 470: 469:synchondrosis 467: 462: 460: 459: 454: 450: 446: 442: 438: 436: 434: 429: 425: 424: 419: 418: 413: 412: 407: 403: 400: 393: 391: 389: 384: 376: 374: 370: 361:12.4°N 65.7°E 339: 330:31.0°N 70.2°E 310: 306: 300: 295: 291: 287: 284: 280: 279: 267: 262: 261: 254: 253: 251: 246: 242: 237: 236: 229: 226: 225: 222: 216: 213: 212: 209: 203: 200: 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397: 380: 277: 276: 275: 259: 258: 234: 233: 221:Protocetinae 208:Protocetidae 191:Infraorder: 185:Artiodactyla 119: 24: 18: 1359:Qaisracetus 1353:Wikispecies 1329:Qaisracetus 1281:Platyosphys 1233:Basiloterus 1199:Supayacetus 1178:Pontogeneus 1143:Chrysocetus 1136:Ancalecetus 1082:Qaisracetus 1068:Phiomicetus 1061:Peregocetus 992:Makaracetus 894:Kutchicetus 839:Ambulocetus 796:Pakicetidae 749:Archaeocete 568:Qaisracetus 549:Qaisracetus 525:Qaisracetus 511:Qaisracetus 477:Qaisracetus 453:Qaisracetus 441:Qaisracetus 406:Qaisracetus 399:Qaisracetus 394:Description 364: / 333: / 305:Baluchistan 286:early whale 278:Qaisracetus 235:Qaisracetus 214:Subfamily: 120:Qaisracetus 25:Qaisracetus 1442:Categories 1267:Pachycetus 1260:Antaecetus 1192:Stromerius 1185:Saghacetus 1164:Masracetus 1096:Takracetus 1089:Rodhocetus 1075:Protocetus 1040:Gaviacetus 1033:Dhedacetus 1019:Artiocetus 965:Pappocetus 937:Babiacetus 887:Dalanistes 846:Gandakasia 774:Vertebrata 772:Subphylum 545:Rodhocetus 537:Rodhocetus 529:Rodhocetus 494:Gaviacetus 488:Rodhocetus 482:Protocetus 458:Takracetus 433:Rodhocetus 417:Babiacetus 411:Pappocetus 366:12.4; 65.7 335:31.0; 70.2 283:protocetid 1344:Q16758029 1274:Perucetus 1206:Zygorhiza 1103:Togocetus 1054:Maiacetus 1047:Indocetus 930:Aegicetus 812:Nalacetus 805:Pakicetus 541:primitive 423:Indocetus 377:Etymology 151:Kingdom: 145:Eukaryota 1338:Wikidata 1304:Category 1171:Ocucajea 780:Mammalia 768:Chordata 762:Animalia 760:Kingdom 710:50061585 517:like in 455:than in 435:kasranii 383:Qaisrani 309:Pakistan 294:Lutetian 260:Q. arifi 248:Species 201:Family: 175:Mammalia 165:Chordata 161:Phylum: 155:Animalia 141:Domain: 1412:4942541 1399:1192853 1386:4832597 1373:4526555 1240:Eocetus 1157:Dorudon 766:Phylum 589:in the 571:in the 533:derived 520:Eocetus 449:rostrum 352:65°42′E 349:12°24′N 321:70°12′E 318:31°00′N 227:Genus: 195:Cetacea 181:Order: 171:Class: 784:Order 778:Class 708:  503:, and 290:Eocene 1425:53242 1394:IRMNG 445:nares 303:) of 1381:GBIF 706:OCLC 547:and 414:and 44:PreꞒ 1368:EoL 698:hdl 539:is 509:. 426:. 373:). 1444:: 1422:: 1409:: 1396:: 1383:: 1370:: 1355:: 1340:: 704:. 694:30 692:. 652:^ 637:^ 598:^ 527:, 497:, 491:, 485:, 461:. 307:, 296:, 122:. 94:Pg 38:Ma 33:, 741:e 734:t 727:v 712:. 700:: 311:( 292:( 256:† 231:† 218:† 205:† 99:N 89:K 84:J 79:T 74:P 69:C 64:D 59:S 54:O 49:Ꞓ

Index

Middle Eocene
Ma
PreꞒ

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Scientific classification
Edit this classification
Eukaryota
Animalia
Chordata
Mammalia
Artiodactyla
Cetacea
Protocetidae
Protocetinae
Qaisracetus
Gingerich et al. 2001
Gingerich et al. 2001
protocetid
early whale

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