842:
104:
782:
506:
Williamson, Thomas E.; Kirkland, James I.; Lucas, Spencer G. (1993). "Selachians from the
Greenhorn Cyclothem ("Middle" Cretaceous: CenomanianâTuronian), Black Mesa, Arizona, and the Paleogeographic distribution of Late Cretaceous selachians".
542:
Leidy (1856) - Notice of remains of extinct vertebrated animals of New-Jersey, collected by Prof. Cook of the State
Geological Survey under the direction of Dr. W. Kitchell. Proceedings of the Academy of Natural Sciences of Philadelphia, 8:
533:
ESTES, R. (1964) Fossil vertebrates from the Late
Cretaceous Lance Formation, Eastern Wyoming. University of California Publications in Geological Sciences, 49: 1â180, 73 fig., 5 pl.
1015:
826:
728:
905:
886:
580:"The first skeletal record of the enigmatic Cretaceous sawfish genus Ptychotrygon (Chondrichthyes, Batoidea) from the Turonian of Morocco"
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920:
642:
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702:
1055:
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872:
1025:
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955:
1050:
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985:
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1065:
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1030:
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935:
930:
1045:
1040:
1005:
759:
657:
733:
754:
746:
579:
689:
479:
423:. Despite formerly being classified within a family of extinct sawfish-like rays known as
8:
475:
505:
607:
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463:
119:
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611:
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449:
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VillalobosâSegura, Eduardo; Underwood, Charlie J.; Ward, David J. (2019).
789:
715:
630:
430:
36:
849:
792:
707:
458:
Fossils of the genus have been found in Canada, the United States, the
405:
166:
81:
46:
841:
720:
595:
452:
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651:
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397:
142:
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71:
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41:
103:
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form a distinct clade that groups closer with the extant family
130:
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390:
852:
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220:
193:
178:
897:
880:
820:
887:
873:
827:
813:
102:
1016:Late Cretaceous animals of South America
419:closely resembling that of a modern-day
501:
499:
898:
427:, phylogenetic analyses indicate that
906:Prehistoric cartilaginous fish genera
656:
655:
16:Extinct genus of cartilaginous fishes
836:
776:
496:
13:
448:, possibly rendering the suborder
14:
1082:
1011:Prehistoric fish of South America
971:Cretaceous fish of North America
840:
780:
34:
961:Paleogene fish of North America
554:"Fossilworks: Sclerorhynchidae"
636:
618:
571:
546:
536:
527:
1:
1056:Fossil taxa described in 1856
921:CretaceousâPaleogene boundary
911:Cretaceous cartilaginous fish
489:
1001:Fossils of the United States
916:Paleocene cartilaginous fish
859:. You can help Knowledge by
799:. You can help Knowledge by
7:
10:
1087:
1061:Prehistoric Batoidea stubs
835:
775:
444:, which contains the true
926:Cretaceous fish of Africa
664:
643:The Paleobiology Database
521:10.1017/s002233600003691x
342:Weiler & Albers, 1964
242:
235:
219:
212:
120:Scientific classification
118:
110:
101:
23:
996:Cretaceous United States
415:It had a large, toothed
298:Cappetta & Case 1975
966:Paleogene United States
941:Cretaceous fish of Asia
584:Papers in Palaeontology
509:Journal of Paleontology
1071:Cretaceous fish stubs
951:Fossils of Uzbekistan
848:This article about a
755:Paleobiology Database
480:Quiriquina Formation
788:This article about
645:accessed on 8/21/09
476:El Molino Formation
466:of Uzbekistan, the
1026:Fossils of Bolivia
1021:Cretaceous Bolivia
956:Bissekty Formation
482:of Chile, and the
472:Dukamaje Formation
468:Tamayama Formation
464:Bissekty Formation
1051:Sclerorhynchoidei
991:Fossils of Mexico
986:Cretaceous Mexico
981:Fossils of Canada
976:Cretaceous Canada
868:
867:
808:
807:
770:
769:
742:Open Tree of Life
658:Taxon identifiers
596:10.1002/spp2.1287
450:Sclerorhynchoidei
382:
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354:
343:
332:
321:
310:
299:
280:
261:
182:Sclerorhynchoidei
1078:
1066:Rajiformes stubs
1036:Fossils of Chile
1031:Cretaceous Chile
946:Fossils of Japan
936:Fossils of Niger
931:Cretaceous Niger
889:
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478:of Bolivia, the
425:Sclerorhynchidae
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328:I. hartenbergeri
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29:Temporal range:
21:
20:
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1080:
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1046:Fossils of Peru
1041:Cretaceous Peru
1006:Demopolis Chalk
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558:fossilworks.org
552:
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547:
541:
537:
532:
528:
504:
497:
492:
484:Chota Formation
462:of Mexico, the
460:Aguja Formation
402:Late Cretaceous
395:sclerorhynchoid
231:
228:
225:Ischyrhiza mira
208:
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114:rostral spines
112:Ischyrhiza mira
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32:Late Cretaceous
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515:(3): 447â474.
494:
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474:of Niger, the
470:of Japan, the
389:is an extinct
380:
379:
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355:
353:Cappetta, 1981
344:
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331:Cappetta, 1975
322:
317:I. nigeriensis
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155:Chondrichthyes
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418:
413:
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410:Maastrichtian
407:
403:
399:
396:
392:
388:
387:
375:(Clark, 1895)
373:
367:
364:(Leidy, 1856)
362:
356:
351:
345:
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329:
323:
320:Tabaste, 1963
318:
312:
307:
301:
296:
290:
288:
282:
277:
271:
269:
268:I. marrocanus
263:
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43:
38:
26:
22:
19:
861:expanding it
847:
801:expanding it
787:
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665:
638:
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620:
587:
583:
573:
561:. Retrieved
557:
548:
538:
529:
512:
508:
457:
453:paraphyletic
437:Onchopristis
435:
429:Ischyrhiza,
428:
414:
385:
384:
383:
371:
360:
349:
339:I. germaniae
338:
327:
316:
309:Nessov, 1997
305:
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286:
275:
267:
257:I. avonicola
256:
248:
224:
223:
214:Type species
197:
196:
111:
24:
18:
790:prehistoric
716:iNaturalist
631:Fossilworks
590:: 353â376.
563:17 December
431:Schizorhiza
287:I. stromeri
279:Leidy, 1856
260:Estes, 1964
249:I. antiquus
230:Leidy, 1856
900:Categories
850:Cretaceous
793:Rajiformes
666:Ischyrhiza
626:Ischyrhiza
490:References
406:Cenomanian
386:Ischyrhiza
372:I. radiata
361:I. antiqua
198:Ischyrhiza
174:Suborder:
167:Rajiformes
25:Ischyrhiza
612:210302939
604:2056-2802
486:of Peru.
400:from the
350:I. viaudi
295:I. texana
126:Kingdom:
675:Wikidata
306:I. serra
143:Chordata
138:Phylum:
131:Animalia
747:3595351
734:1057297
708:4824857
695:4655141
681:Q887854
543:220â221
442:Rajidae
421:sawfish
417:rostrum
276:I. mira
237:Species
189:Genus:
162:Order:
150:Class:
721:709544
610:
602:
446:skates
434:, and
207:, 1856
855:is a
795:is a
760:34688
729:IRMNG
608:S2CID
391:genus
205:Leidy
857:stub
853:fish
797:stub
703:GBIF
633:.org
600:ISSN
565:2021
37:Preę
690:EoL
629:at
592:doi
517:doi
412:).
398:ray
393:of
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