504:
123:
110:
452:
is still only known from incomplete neurocranial remains and associated dermal material. These suggest that it was a relatively large shark, probably well over one meter in length when fully grown. Its body form was probably similar to that of other phalacanthous sharks.
518:
476:). Another findings, like those of the Puertollano Bason in Spain suggests that also it lived in zones of marine influence, in brackish waters. It shared its environment with other primitive sharks, including to
939:
632:
Soler-Gijón, R. 1997. Euselachian sharks from the Late
Carboniferous of the Puertollano Basin, Spain: bioestratigraphicand palaeoenvironmental implications.
964:
713:
Chahud, A.; Fairchild, T.R. & Petri, S. 2010. Chondrichthyans from the base of the Irati
Formation (Early Permian, Paraná Basin), São Paulo, Brazil.
880:
798:
979:
959:
448:
had seven fins, two in the upper part and five in the underside, and it had a heterodont dentition and mandibles relatively long and deeper.
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A new species of sphenacanthid (Chondrichthyes, Elasmobranchii) from the Rio do Rasto
Formation (Paraná basin), southern Brazil
949:
122:
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probably hunts small fishes and, unlike their modern-day relatives, its inhabited fresh water lagoons.
401:
187:
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Silva-Santos, R. 1946. Duas novas formas de
Elasmobrânquios do Paleozóico do Meio Norte, Brasil.
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397:
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was discovered in
Carboniferous terrains of Scotland (Visén Oil Shale Groups), in the
928:
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432:. It lived 359 million years ago, and probably it was one of the first member of the
409:
207:
67:
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An etymological and explanatory dictionary of the terms and language of geology
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468:, in ancient fresh water systems, a habitat that also is known in the
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572:. London: Longman, Orme, Brown, Green, & Longmans. p. 161
437:
421:
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542:(livr. 8–9). Imprimérie de Petitpierre, Neuchatel viii-72
840:
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693:, Volume 122, Issue 1–2, January 1998, Pages 9–25,
384:
371:
665:V. E. Pauliv, E. V. Dias, and F. A. Sedor. 2012.
482:of one meter in length and the similar species,
540:Recherches Sur Les Poissons Fossiles. Tome III
8:
746:
492:may have preyed on its smaller relatives.
108:
20:
691:Zoological Journal of the Linnean Society
617:
606:Zoological Journal of the Linnean Society
740:Anais da Academia Brasileira de Ciências
729:Anais da Academia Brasileira de Ciências
661:
659:
649:chondrichthyans of the Russian Arctic.
531:
436:, the lineage that leads to the modern
591:
589:
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940:Prehistoric cartilaginous fish genera
7:
671:Revista Brasileira de Paleontologia
699:10.1111/j.1096-3642.1998.tb02523.x
619:10.1111/j.1096-3642.1998.tb02523.x
14:
965:Prehistoric fish of South America
689:, a Palaeozoic freshwater shark,
645:A. Ivanov. 1999. Late Devonian –
602:, a Palaeozoic freshwater shark"
516:
502:
121:
1:
980:Fossil taxa described in 1837
651:Acta Palaeontologica Polonica
960:Carboniferous fish of Europe
985:Taxa named by Louis Agassiz
385:
372:
334:Sphenacanthus sanpauloensis
322:Sphenacanthus riorastoensis
244:Sphenacanthus aequistriatus
1001:
734:Silva-Santos, R. 1947. Um
404:family and lived from the
301:Figueroa & Gallo, 2017
596:Dick, John R. F. (1998).
389:, 'spine') is an extinct
381:
368:
306:Sphenacanthus maranhensis
276:Sphenacanthus hybodioides
260:Sphenacanthus costellatus
252:Sphenacanthus carbonarius
240:
233:
222:
215:
118:Scientific classification
116:
107:
23:
872:Sphenacanthus serrulatus
842:Sphenacanthus serrulatus
738:do Gondwana brasileiro.
723:10.1016/j.gr.2010.01.006
566:Roberts, George (1839).
450:Sphenacanthus serrulatus
346:Sphenacanthus serrulatus
290:Sphenacanthus hybodoides
283:Sphenacanthus hybodoides
224:Sphenacanthus serrulatus
488:. It is possible that
268:Sphenacanthus gondwanus
16:Extinct genus of sharks
474:Rio do Rasto Formation
907:Paleobiology Database
825:Paleobiology Database
950:Carboniferous sharks
485:Tristychius arcuatus
400:that belongs to the
314:Sphenacanthus marshi
510:Paleontology portal
298:Sphenacanthus ignis
538:L. Agassiz. 1837.
309:Silva Santos, 1946
271:Silva Santos, 1947
975:Fossils of Brazil
922:
921:
894:Open Tree of Life
812:Open Tree of Life
752:Taxon identifiers
715:Gondwana Research
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434:elasmobranchians
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29:Temporal range:
21:
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708:Further reading
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466:United Kingdom
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398:xenacanthiform
376:, 'wedge' and
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317:Newberry, 1873
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790:Sphenacanthus
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760:Sphenacanthus
757:
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748:
742:, 19:247–253.
741:
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731:, 18:281–287.
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687:Sphenacanthus
684:
679:
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653:49(3):267–285
652:
648:
647:Early Permian
642:
639:
636:, 21:137–169.
635:
629:
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615:
612:(1–2): 9–25.
611:
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600:Sphenacanthus
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524:Sharks portal
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490:Sphenacanthus
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462:Sphenacanthus
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446:Sphenacanthus
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442:Sphenacanthus
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427:
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410:Carboniferous
407:
406:Late Devonian
403:
399:
396:
395:chondrichtyan
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360:Sphenacanthus
349:Agassiz, 1837
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228:Agazzis, 1837
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202:Sphenacanthus
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33:Late Devonian
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25:Sphenacanthus
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736:Ctenacanthus
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685:R. F. DICK,
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574:. Retrieved
568:
561:
553:"PBDB Taxon"
547:
539:
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489:
483:
477:
470:Paraná Basin
461:
460:
457:Paleobiology
449:
445:
441:
414:Late Permian
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255:Giebel, 1848
251:
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223:
217:Type species
201:
200:
37:Late Permian
24:
18:
866:Wikispecies
784:Wikispecies
479:Xenacanthus
472:in Brazil (
247:Davis, 1879
935:Xenacanths
929:Categories
673:15:243–250
496:References
416:period in
412:until the
408:, through
171:Subclass:
857:Q25400300
576:1 January
141:Kingdom:
135:Eukaryota
851:Wikidata
775:Q7576622
769:Wikidata
418:Scotland
181:Family:
155:Chordata
151:Phylum:
145:Animalia
131:Domain:
899:6160183
886:8489831
817:5315881
804:3239180
386:akantha
341:., 2010
337:Chahud
329:., 2012
325:Pauliv
235:Species
208:Agassiz
194:Genus:
161:Class:
912:205831
438:sharks
430:Brazil
426:Russia
382:ἄκανθα
363:(from
210:, 1837
830:34515
422:Spain
393:of a
391:genus
378:Greek
373:sphḗn
365:Greek
339:et al
327:et al
881:GBIF
799:GBIF
683:JOHN
578:2022
428:and
369:σφήν
43:PreꞒ
719:doi
695:doi
614:doi
610:122
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658:^
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586:^
440:.
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420:,
380::
367::
93:Pg
721::
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580:.
555:.
198:†
185:†
98:N
88:K
83:J
78:T
73:P
68:C
63:D
58:S
53:O
48:Ꞓ
35:-
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