Studies on the Paleozoic selachian genus Ctenacanthus Agassiz. No. 2, Bythiacanthus St. John and Worthen, Amelacanthus, new genus, Eunemacanthus St. John and Worthen, Sphenacanthus Agassiz, and Wodnika Münster. American Museum novitates ; no. 2722

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dc.contributor.authorMaisey, John G.en_US
dc.date.accessioned2005-10-06T17:05:42Z
dc.date.available2005-10-06T17:05:42Z
dc.date.issued1982en_US
dc.description24 p. : ill. ; 26 cm.en_US
dc.descriptionIncludes bibliographical references (p. 22-24).en_US
dc.description.abstract"Some of the finspines originally referred to Ctenacanthus are reassigned to other taxa. Several characteristically tuberculate lower Carboniferous finspines are referred to Bythiacanthus St. John and Worthen, including one of Agassiz's original species, Ctenacanthus brevis. Finspines referable to Bythiacanthus are known from western Europe, the U.S.S.R., and North America. Amelacanthus, new genus, is described on the basis of finspines from the United Kingdom. Four species are recognized, two of which were originally assigned to Onchus by Agassiz, and all four of which were referred to Ctenacanthus by Davis. Eunemacanthus St. John and Worthen is revised to include some European and North American species. Sphenacanthus Agassiz is shown to be a distinct taxon from Ctenacanthus Agassiz, on the basis of finspine morphology, and its widespread occurrence in the Carboniferous of North America is demonstrated. Similarities are noted between the finspines of Sphenacanthus and Wodnika, and both taxa are placed provisionally in the family Sphenacanthidae. A new species of Wodnika, W. borealis, is recognized on the basis of a finspine from the Permian of Alaska"--P. [1].en_US
dc.format.extent7835796 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/2246/3536
dc.languageengen_US
dc.language.isoen_US
dc.publisherNew York, N.Y. : American Museum of Natural Historyen_US
dc.relation.ispartofseriesAmerican Museum novitates ; no. 2722en_US
dc.subject.lccQL1 .A436 no.2722, 1982en_US
dc.subject.lcshCtenacanthus.en_US
dc.subject.lcshChondrichthyes, Fossil.en_US
dc.subject.lcshFishes, Fossil.en_US
dc.subject.lcshPaleontology -- Paleozoic.en_US
dc.titleStudies on the Paleozoic selachian genus Ctenacanthus Agassiz. No. 2, Bythiacanthus St. John and Worthen, Amelacanthus, new genus, Eunemacanthus St. John and Worthen, Sphenacanthus Agassiz, and Wodnika Münster. American Museum novitates ; no. 2722en_US
dc.title.alternativeBythiacanthus St. John and Worthen, Amelacanthus, new genus, Eunemacanthus St. John and Worthen, Sphenacanthus Agassiz, and Wodnika Münsteren_US
dc.typetexten_US

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