144:
118:
523:
1437:
1382:
Galton, Peter M. (2007). "Teeth of ornithischian dinosaurs (mostly
Ornithopoda) from the Morrison Formation (Upper Jurassic) of the western United States". In Carpenter K. (ed.).
515:, based on YPM 1882, a partial skeleton also from Como Bluff. In 1895, he coined the family Laosauridae for his genus, but this was eventually considered synonymous with
980:, a hypsilophodontid dinosaur from the Upper Jurassic of North America and East Africa, with a review of hypsilophodontids from the Upper Jurassic of North America".
1499:
1537:
1532:
1354:; Sues, Hans-Dieter; Witmer, Larry M.; Coria, Rodolfo A. (2004). "Basal Ornithopoda". In Weishampel, David B.; Dodson, Peter; OsmΓ³lska Halszka (eds.).
1486:
670:; and in 1983 he redescribed most of the material and reassigned some of it, as described above. Galton (1983) is also one of the sources for the "
1542:
1391:
1363:
1330:
552:
490:
430:
390:. The validity of this genus is doubtful because it is based on fragmentary fossils. A second species from the Morrison Formation,
1547:
1552:
742:(Sues and Norman, 1990), although the remains are too meager to be certain. Second, Galton, in a 2007 review, declared
143:
586:
628:
published a paper in 1949 recognizing this new geologic information, while finding it generically distinct from
434:
1267:
Varricchio, D.J.; Jackson, F.; Borkowski, J.J.; Horner, J.R. (1997). "Nest and egg clutches of the dinosaur
1454:
1527:
838:
526:
368:
269:
240:
1280:
1233:
1106:
854:
273:
244:
1007:"A new rhynchocephalian reptile from the Jurassic of Wyoming, with notes on the fauna of "Quarry 9""
625:
1296:
1249:
1122:
1072:
1002:
948:
870:
516:
486:
446:
383:
325:
138:
1504:
1387:
1359:
1326:
921:
Marsh, Othniel
Charles (1878). "Principal characters of American Jurassic dinosaurs. Part I".
621:
598:
398:
1442:
1288:
1241:
1197:
Russell, Loris S. (1949). "The relationships of the
Alberta Cretaceous dinosaur "Laosaurus"
1153:
1114:
1062:
1026:
1018:
938:
930:
901:
862:
639:
610:
454:
497:
based on size, but Galton transferred the remains to other taxa, assigning the skeleton to
1351:
748:
to be based on undiagnostic remains, and shifted diagnostic referred remains to new taxon
613:
590:
395:
372:
465:, originally based on a back vertebral centrum, a tail vertebral centrum, and part of an
1284:
1237:
1110:
858:
729:
was assessed as dubious by Galton, a status it has kept through the last major reviews.
793:
750:
380:
355:
220:
117:
1521:
1126:
1076:
952:
874:
744:
707:
634:
68:
1253:
1300:
1031:
1022:
973:
943:
771:
485:
to consist of thirteen back and eight tail centra, and portions of both hindlimbs.
478:
414:
299:
294:
252:
204:
30:
1321:, Dryosauridae". In Weishampel, David B.; Dodson, Peter; OsmΓ³lska Halszka (eds.).
501:. Marsh returned to the genus in 1894, when additional remains convinced him that
1006:
1051:"Osteology of ornithopodous dinosaurs from the Dinosaur National Monument, Utah"
43:
1477:
1432:
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799:
782:
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680:
577:
571:
539:
522:
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438:
88:
53:
1118:
934:
866:
1410:
1358:(2nd ed.). Berkeley: University of California Press. pp. 393β412.
1325:(1st ed.). Berkeley: University of California Press. pp. 498β509.
1157:
677:
666:
594:
565:
376:
155:
93:
37:
1386:. Bloomington and Indianapolis: Indiana University Press. pp. 17β47.
1471:
450:
426:
358:
188:
175:
83:
78:
63:
58:
48:
609:. At the time, though, the discovery locality was thought to be in the
1491:
1427:
703:
672:
643:
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387:
98:
73:
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722:
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406:
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165:
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842:
1142:"On the affinities and classification of the dinosaurian reptiles"
662:
548:
521:
351:
1317:
Sues, Hans-Dieter; Norman, David B. (1990). "Hypsilophodontidae,
710:
confusion of a few years later, which was eventually settled as
589: 9438, a partial left hindlimb and vertebral bits from the
466:
1452:
1224:
and a
Laurasia-Gondwanaland connection in the Upper Jurassic".
489:
had assigned additional remains, including a partial skeleton (
461:-sized" animal. In the same year, he named two other species:
581:
in 1983. Gilmore also described the fifth and final species,
458:
1175:, an ornithischian dinosaur from the Cretaceous of Alberta".
695:, based on unpublished evidence. This would tie in with the
620:
type locality in the early 1930s showed it to be within the
1177:
Transactions of the Royal
Society of Canada, Section 4
559:, and in 1925 added partial skeleton CM 11340 to
1384:
Horns and Beaks: Ceratopsian and
Ornithopod Dinosaurs
1271:
and the evolution of the avian reproductive system".
563:, based on size, but Galton transferred the femur to
453:
material includes nine partial and two complete tail
736:
is seen as a possible second species or specimen of
477:, hindlimb, and tooth (YPM 1876). A review by
259:
1461:
1220:Galton, Peter M. (1977). "The ornithopod dinosaur
1095:"The typical Ornithopoda of the American Jurassic"
653:prominently were by Galton. In 1977, he assigned
632:proper. Russell found this taxon to be most like
732:Two further developments have occurred. First,
511:), and that there was another species present:
1171:Gilmore, Charles W. (1924). "A new species of
725:were confused with hypsilophodont embryoes).
8:
649:The next major publications which mentioned
585:(species name for its small size), based on
547:Charles Gilmore in 1909 assigned a juvenile
1449:
754:, a new combination based on the original
116:
20:
1346:
1344:
1342:
1066:
1030:
942:
905:
1428:First page and abstract of Russell, 1949
1377:
1375:
833:
831:
1312:
1310:
1192:
1190:
1088:
1086:
1044:
1042:
1011:Proceedings of the U.S. National Museum
997:
995:
968:
966:
964:
962:
827:
718:individuals at their nesting site (the
687:of the early 1980s, because it assigns
425:Marsh (1878a) named his new genus from
890:"Catalogue of the genera of dinosaurs"
797:, now considered a junior synonym of
7:
923:American Journal of Science and Arts
847:American Journal of Science and Arts
843:"Notice of new dinosaurian reptiles"
1538:Taxa named by Othniel Charles Marsh
1533:Dinosaurs of the Morrison Formation
814:= dubious ornithischian, possibly
457:, which he concluded came from a "
14:
529:'s 1896 skeletal restoration of "
1435:
1424:, from the Dinosaur Mailing List
976:(1983). "The cranial anatomy of
142:
1140:Marsh, Othniel Charles (1895).
1093:Marsh, Othniel Charles (1894).
1023:10.5479/si.00963801.37-1698.35
371:in 1878 from remains from the
1:
1543:Fossil taxa described in 1878
1055:Memoir of the Carnegie Museum
1049:Gilmore, Charles W. (1925).
982:Geologica et Palaeontologica
638:, from the Early Cretaceous
1146:American Journal of Science
1099:American Journal of Science
129:(unknown species; possibly
1569:
481:in 1983 found the type of
16:Extinct genus of dinosaurs
894:Annals of Carnegie Museum
394:, and a species from the
367:, was first described by
285:
280:
258:
251:
139:Scientific classification
137:
124:
115:
23:
1411:More on the taxonomy of
1119:10.2475/ajs.s3-48.283.85
935:10.2475/ajs.s3-16.95.411
867:10.2475/ajs.s3-15.87.241
505:deserved its own genus (
473:, originally based on a
435:Samuel Wendell Williston
1548:Paleontology in Wyoming
1203:Journal of Paleontology
1158:10.2475/ajs.s4-7.42.403
1032:2027/njp.32101042899474
944:2027/hvd.32044107172876
616:, but fieldwork at the
839:Marsh, Othniel Charles
808:= dubious ornithishian
794:Othnielosaurus consors
751:Othnielosaurus consors
575:) and the skeleton to
544:
413:, are also considered
527:Othniel Charles Marsh
525:
433: 1874) found by
1553:Ornithischian genera
888:White, T.E. (1973).
445:, from rocks of the
421:History and taxonomy
361:. The type species,
1285:1997Natur.385..247V
1238:1977Natur.268..230G
1111:1894AmJS...48...85M
1003:Gilmore, Charles W.
859:1878AmJS...15..241M
714:individuals eating
346:(meaning "stone or
758:partial skeleton.
545:
517:Hypsilophodontidae
447:Morrison Formation
384:Morrison Formation
1515:
1514:
1455:Taxon identifiers
1393:978-0-253-34817-3
1365:978-0-520-24209-8
1332:978-0-520-06727-1
1279:(6613): 247β250.
1232:(5617): 230β232.
800:Nanosaurus agilis
770:(type species) =
762:Taxonomic summary
622:Belly River Group
599:Allison Formation
493: 11340), to
411:Laosaurus minimus
399:Allison Formation
339:
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1269:Troodon formosus
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1152:(300): 483β498.
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611:Early Cretaceous
455:vertebral centra
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29:Temporal range:
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853:(87): 241β244.
837:
836:
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824:
764:
614:Blairmore Group
591:Late Cretaceous
487:Charles Gilmore
423:
396:late Cretaceous
364:Laosaurus celer
356:neornithischian
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1405:External links
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1400:
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1356:The Dinosauria
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1323:The Dinosauria
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1105:(283): 85β90.
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350:lizard") is a
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1179:. Series 3.
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1101:. Series 3.
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341:
340:
330:nomen dubium
329:
321:
314:nomen dubium
313:
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300:nomen dubium
298:
289:
263:
262:
253:Type species
234:
233:
211:
205:Ornithischia
195:
182:
130:
126:
31:Kimmeridgian
24:
18:
1061:: 385β409.
900:: 117β155.
806:L. gracilis
678:carnivorous
661:to his new
659:L. gracilis
561:L. gracilis
557:L. gracilis
495:L. gracilis
483:L. gracilis
463:L. gracilis
392:L. gracilis
309:L. gracilis
1522:Categories
1413:Nanosaurus
1222:Dryosaurus
1201:Gilmore".
988:: 207β243.
978:Dryosaurus
822:References
816:orodromine
812:L. minimus
789:L. consors
756:L. consors
739:Orodromeus
734:L. minimus
720:troodontid
716:Orodromeus
698:Orodromeus
689:L. minimus
685:hypothesis
681:ornithopod
655:L. consors
618:L. minimus
583:L. minimus
578:Dryosaurus
572:Nanosaurus
540:Nanosaurus
513:L. consors
508:Dryosaurus
499:Dryosaurus
439:Como Bluff
369:O.C. Marsh
322:L. minimus
189:Dinosauria
133:) in 1896
1463:Laosaurus
1421:Laosaurus
1417:Othnielia
1173:Laosaurus
1127:130777820
1077:134260227
953:219245525
875:131371457
651:Laosaurus
630:Laosaurus
566:Othnielia
555:5808) to
531:Laosaurus
427:vertebrae
377:Tithonian
373:Oxfordian
343:Laosaurus
235:Laosaurus
162:Kingdom:
156:Eukaryota
127:Laosaurus
125:Pubis of
25:Laosaurus
1478:Q1657525
1472:Wikidata
1254:30721851
1005:(1909).
841:(1878).
778:L. altus
768:L. celer
727:L. celer
723:embryoes
503:L. altus
471:L. altus
359:dinosaur
328:, 1924 (
290:L. celer
281:Species
176:Chordata
172:Phylum:
166:Animalia
152:Domain:
131:L. celer
1505:1298705
1492:4823173
1301:4313286
1281:Bibcode
1234:Bibcode
1199:minimus
1107:Bibcode
855:Bibcode
772:dubious
712:Troodon
704:Troodon
693:Troodon
673:Troodon
644:England
603:Alberta
535:consors
449:. The
443:Wyoming
415:dubious
403:Alberta
388:Wyoming
326:Gilmore
227:Genus:
105:↓
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1299:
1273:Nature
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1226:Nature
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624:, and
607:Canada
475:pelvis
469:; and
407:Canada
348:fossil
1500:IRMNG
1297:S2CID
1250:S2CID
1123:S2CID
1073:S2CID
949:S2CID
871:S2CID
663:taxon
569:(now
549:femur
537:(now
379:-age
352:genus
270:Marsh
241:Marsh
212:Clade
196:Clade
183:Clade
1487:GBIF
1388:ISBN
1360:ISBN
1327:ISBN
657:and
553:USNM
467:ulna
451:type
295:type
274:1878
245:1878
44:Preκ
1289:doi
1277:385
1242:doi
1230:268
1154:doi
1115:doi
1063:doi
1027:hdl
1019:doi
939:hdl
931:doi
902:doi
863:doi
708:egg
691:to
676:as
601:of
587:NMC
459:fox
437:at
431:YPM
401:of
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