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Prefrontal bone

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17: 1399: 1456: 110:. Conversely, a well developed prefrontal is considered to be a primitive feature in dinosaurs. The prefrontal makes contact with several other bones in the skull. The anterior part of the bone articulates with the nasal bone and the lacrimal bone. The posterior part of the bone articulates with the 135:
Cloutier, Richard; Ahlberg, Per E. (1996). "Morphology, characters, and the interrelationships of basal sarcopterygians". In Stiassny, Melanie L.J.; Parenti, Lynn R.; Johnson, G. David (eds.).
118:. The prefrontal bone sometimes forms part of the upper margin of the orbit. This bone is part of the skull roof, which is a set of bones that cover the brain, eyes and nostrils. 160: 971: 1497: 981: 946: 582: 419: 634: 510: 1440: 704: 644: 444: 404: 347: 684: 471: 830: 825: 424: 267: 203: 679: 689: 531: 439: 1526: 1490: 144: 1433: 1531: 483: 1483: 196: 164: 1426: 1406: 1516: 565: 189: 96:
The prefrontal bone is a very small bone near the top of the skull, which is lost in many groups of
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Parentheses denote bones that receive a different name in particular clades
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Italics denote neomorphic bones present only in particular clades
1337: 1172: 1137: 1088: 992: 909: 891: 886: 865: 639: 628: 409: 295: 244: 77: 1308: 1131: 1062: 1031: 956: 786: 774: 569: 85: 72:. The prefrontal is found in most modern and extinct lungfish, 1126: 1121: 671: 552: 546: 280: 232: 58: 47: 919: 812: 212: 107: 32: 106:
and is completely absent in their modern descendants, the
134: 163:. Palaeos: The Trace of Life on Earth. Archived from 211: 128: 1508: 139:. San Diego: Academic Press. pp. 445–479. 458: 371: 1491: 1434: 1002: 197: 1498: 1484: 1441: 1427: 468:(Supraoccipital+Exoccipital+Basioccipital) 204: 190: 153: 726: 15: 1509: 1156: 937: 725: 230: 185: 1450: 1393: 1271:) (Tibiale+Intermedium+Centrale 3+4) 928: 80:. The prefrontal is lost in early 13: 1147: 14: 1543: 492:(Squamosal+Petrosal+Ectotympanic) 1454: 1397: 84:and so is not present in modern 91: 1: 121: 1527:Musculoskeletal system stubs 1470:. You can help Knowledge by 1413:. You can help Knowledge by 1407:human musculoskeletal system 137:Interrelationships of Fishes 7: 480:(Parasphenoid+Basisphenoid) 10: 1548: 1449: 1392: 1376: 1329: 1294: 1257: 1219: 1196: 1165: 1112: 1079: 1048: 900: 852: 843: 811: 745: 736: 732: 721: 670: 605: 561: 503: 392: 252: 243: 239: 231: 226: 114:bone and more rarely the 1532:Vertebrate anatomy stubs 474:(Exoccipital+Opisthotic) 1466:–related article is a 1235:Intermediate cuneiform 381:(Postparietal+Tabular) 24: 19: 727:Postcranial skeleton 486:(Prootic+Opisthotic) 1283:(Distal tarsal 4+5) 1517:Vertebrate anatomy 1464:vertebrate anatomy 765:Cervical vertebrae 25: 1479: 1478: 1422: 1421: 1390: 1389: 1372: 1371: 1368: 1367: 1325: 1324: 1321: 1320: 1317: 1316: 1290: 1289: 1258:Composite tarsals 1242:Lateral cuneiform 1240:Distal tarsal 3 ( 1233:Distal tarsal 2 ( 1226:Distal tarsal 1 ( 1075: 1074: 1071: 1070: 1044: 1043: 1030:Distal carpal 4 ( 1023:Distal carpal 3 ( 1016:Distal carpal 2 ( 1009:Distal carpal 1 ( 839: 838: 717: 716: 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70:Tetrapodomorpha 35:separating the 29:prefrontal bone 12: 11: 5: 1545: 1535: 1534: 1529: 1524: 1519: 1503: 1502: 1495: 1488: 1480: 1477: 1476: 1459: 1446: 1445: 1438: 1431: 1423: 1420: 1419: 1402: 1388: 1387: 1385: 1384: 1381: 1377: 1374: 1373: 1370: 1369: 1366: 1365: 1363: 1362: 1357: 1352: 1347: 1333: 1331: 1327: 1326: 1323: 1322: 1319: 1318: 1315: 1314: 1312: 1311: 1306: 1301: 1295: 1292: 1291: 1288: 1287: 1285: 1284: 1278: 1277:(Centrale 1+2) 1272: 1261: 1259: 1255: 1254: 1252: 1251: 1248: 1245: 1238: 1231: 1223: 1221: 1220:Distal tarsals 1217: 1216: 1214: 1213: 1210: 1207: 1204: 1200: 1198: 1194: 1193: 1191: 1190: 1180: 1175: 1169: 1167: 1160: 1151: 1142: 1141: 1134: 1129: 1124: 1118: 1116: 1110: 1109: 1107: 1106: 1101: 1096: 1091: 1085: 1083: 1077: 1076: 1073: 1072: 1069: 1068: 1066: 1065: 1060: 1055: 1049: 1046: 1045: 1042: 1041: 1039: 1038: 1035: 1028: 1021: 1014: 1006: 1004: 1003:Distal carpals 997: 996: 989: 984: 979: 969: 964: 954: 943: 941: 932: 923: 922: 917: 912: 906: 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4: 3: 2: 1544: 1533: 1530: 1528: 1525: 1523: 1520: 1518: 1515: 1514: 1512: 1501: 1496: 1494: 1489: 1487: 1482: 1481: 1475: 1473: 1469: 1465: 1460: 1457: 1453: 1452: 1444: 1439: 1437: 1432: 1430: 1425: 1424: 1418: 1416: 1412: 1409:article is a 1408: 1403: 1400: 1396: 1395: 1382: 1379: 1378: 1375: 1361: 1358: 1356: 1353: 1351: 1348: 1346: 1345: 1340: 1339: 1335: 1334: 1332: 1330:Miscellaneous 1328: 1310: 1307: 1305: 1302: 1300: 1297: 1296: 1293: 1282: 1279: 1276: 1273: 1270: 1266: 1263: 1262: 1260: 1256: 1249: 1246: 1243: 1239: 1236: 1232: 1229: 1225: 1224: 1222: 1218: 1211: 1208: 1205: 1202: 1201: 1199: 1195: 1188: 1184: 1181: 1179: 1176: 1174: 1171: 1170: 1168: 1164: 1161: 1159: 1155: 1152: 1150: 1146: 1140: 1139: 1135: 1133: 1130: 1128: 1125: 1123: 1120: 1119: 1117: 1115: 1111: 1105: 1104:Epipubic bone 1102: 1100: 1097: 1095: 1092: 1090: 1087: 1086: 1084: 1082: 1081:Pelvic girdle 1078: 1064: 1061: 1059: 1056: 1054: 1051: 1050: 1047: 1036: 1033: 1029: 1026: 1022: 1019: 1015: 1012: 1008: 1007: 1005: 1001: 995: 994: 990: 988: 985: 983: 980: 977: 973: 970: 968: 965: 962: 958: 955: 952: 948: 945: 944: 942: 940: 936: 933: 931: 927: 921: 918: 916: 915:Radius (bone) 913: 911: 908: 907: 905: 903: 899: 893: 890: 888: 885: 883: 882:Interclavicle 880: 878: 875: 873: 870: 867: 863: 860: 859: 857: 855: 851: 848: 846: 842: 832: 829: 827: 824: 822: 819: 818: 816: 814: 810: 804: 803:Haemal arches 801: 796: 795: 791: 789: 788: 784: 783: 781: 778: 776: 773: 771: 768: 766: 763: 761: 758: 756: 753: 752: 750: 748: 744: 741: 739: 735: 731: 724: 720: 706: 703: 701: 698: 696: 693: 691: 688: 686: 683: 681: 678: 677: 675: 673: 669: 663: 660: 658: 655: 653: 652: 648: 646: 643: 641: 638: 636: 633: 630: 626: 623: 620: 616: 613: 612: 610: 608: 604: 594: 593:Wormian bones 591: 589: 586: 584: 581: 579: 578: 574: 571: 567: 564: 563: 560: 554: 551: 548: 544: 541: 539: 536: 534: 533: 529: 527: 524: 521: 517: 514: 512: 511:Ectopterygoid 509: 508: 506: 502: 491: 488: 485: 482: 479: 476: 473: 470: 467: 464: 463: 461: 457: 451: 448: 446: 443: 441: 438: 436: 433: 431: 428: 426: 423: 421: 418: 416: 413: 411: 408: 406: 403: 401: 400:Basioccipital 398: 397: 395: 391: 380: 379:Interparietal 377: 376: 374: 370: 364: 361: 359: 358:Supratemporal 356: 354: 351: 349: 346: 344: 343: 339: 337: 336:Quadratojugal 334: 332: 329: 327: 324: 322: 319: 317: 314: 312: 309: 307: 304: 302: 299: 297: 294: 292: 289: 286: 282: 279: 277: 276: 275:Intertemporal 272: 270: 269: 265: 263: 260: 259: 257: 255: 251: 248: 246: 242: 238: 234: 229: 225: 221: 218: 214: 207: 202: 200: 195: 193: 188: 187: 184: 167:on 2008-06-04 166: 162: 156: 148: 142: 138: 131: 127: 119: 117: 113: 109: 105: 102: 99: 89: 87: 83: 82:mammaliaforms 79: 75: 71: 67: 63: 60: 57: 53: 49: 46: 42: 41:frontal bones 38: 34: 30: 22: 21:Dromaeosaurus 18: 1472:expanding it 1461: 1415:expanding it 1404: 1342: 1336: 1136: 991: 845:Appendicular 821:Cervical rib 792: 785: 705:Tympanohyoid 649: 645:Prearticular 619:Ectotympanic 577:Entotympanic 575: 530: 516:Epipterygoid 445:Sphenethmoid 435:Parasphenoid 405:Basisphenoid 348:Septomaxilla 340: 325: 321:Postparietal 273: 266: 169:. Retrieved 165:the original 155: 136: 130: 95: 92:In dinosaurs 28: 26: 20: 1178:Intermedium 967:Intermedium 685:Ceratohyoid 520:Alisphenoid 472:Otoccipital 415:Exoccipital 316:Postorbital 311:Postfrontal 62:Rhipidistia 50:. It first 1511:Categories 1360:Osteoderms 1299:Metatarsal 1265:Astragalus 1212:Centrale 4 1209:Centrale 3 1206:Centrale 2 1203:Centrale 1 1053:Metacarpal 961:Triquetral 831:Caudal rib 826:Dorsal rib 700:Thyrohyoid 695:Stylohyoid 662:Surangular 651:Predentary 425:Opisthotic 331:Premaxilla 326:Prefrontal 268:Internasal 254:Skull roof 171:2008-01-25 122:References 74:amphibians 1350:Gastralia 1344:Baubellum 1304:Phalanges 1275:Navicular 1197:Centralia 1187:Calcaneum 1058:Phalanges 1018:Trapezoid 1011:Trapezium 872:Cleithrum 794:Pygostyle 747:Vertebrae 680:Basihyoid 625:Articular 566:Columella 538:Pterygoid 466:Occipital 393:Braincase 353:Squamosal 285:Zygomatic 104:dinosaurs 1183:Fibulare 1114:Hindlimb 1025:Capitate 987:Pisiform 951:Scaphoid 902:Forelimb 877:Coracoid 862:Clavicle 690:Epihyoid 657:Splenial 635:Coronoid 607:Mandible 543:Quadrate 532:Prevomer 526:Palatine 490:Temporal 484:Petrosal 306:Parietal 291:Lacrimal 220:skeleton 217:tetrapod 101:theropod 88:either. 78:reptiles 68:and the 66:lungfish 45:tetrapod 43:in many 37:lacrimal 1338:Baculum 1173:Tibiale 1138:Patella 1089:Ischium 993:Pteroid 947:Radiale 910:Humerus 892:Sternum 887:Scapula 866:Furcula 640:Dentary 629:Malleus 615:Angular 440:Prootic 410:Ethmoid 363:Tabular 342:Rostral 296:Maxilla 262:Frontal 245:Cranium 215:in the 112:frontal 86:mammals 54:in the 52:evolved 1309:Ungual 1281:Cuboid 1158:Tarsus 1132:Fibula 1063:Ungual 1032:Hamate 976:Lunate 957:Ulnare 939:Carpus 787:Coccyx 775:Sacrum 570:Stapes 504:Palate 143:  48:skulls 23:skull. 1522:Skull 1462:This 1405:This 1269:Talus 1127:Tibia 1122:Femur 1099:Pubis 1094:Ilium 930:Manus 755:Atlas 738:Axial 672:Hyoid 553:Vomer 547:Incus 301:Nasal 281:Jugal 233:Skull 213:Bones 108:birds 59:clade 31:is a 1468:stub 1411:stub 920:Ulna 813:Ribs 760:Axis 141:ISBN 76:and 39:and 33:bone 27:The 1149:Pes 1513:: 1499:e 1492:t 1485:v 1474:. 1442:e 1435:t 1428:v 1417:. 1341:/ 1267:( 1244:) 1237:) 1230:) 1189:) 1185:( 1034:) 1027:) 1020:) 1013:) 978:) 974:( 963:) 959:( 953:) 949:( 868:) 864:( 631:) 627:( 621:) 617:( 572:) 568:( 549:) 545:( 522:) 518:( 287:) 283:( 205:e 198:t 191:v 174:. 149:.

Index


bone
lacrimal
frontal bones
tetrapod
skulls
evolved
sarcopterygian
clade
Rhipidistia
lungfish
Tetrapodomorpha
amphibians
reptiles
mammaliaforms
mammals
coelurosaurian
theropod
dinosaurs
birds
frontal
palpebral bone
ISBN
978-0-12-670951-3
"Mammaliformes"
the original
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t
e
Bones

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