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Cranial morphology of the fossil elasmobranch Synechodus dubrisiensis. American Museum novitates ; no. 2804

Show simple item record Maisey, John G. en_US 2005-10-06T18:13:00Z 2005-10-06T18:13:00Z 1985 en_US
dc.description 28 p. : ill. ; 26 cm. en_US
dc.description Includes bibliographical references (p. 25-28). en_US
dc.description.abstract "The neurocranium of Synechodus dubrisiensis, a late Cretaceous elasmobranch, is described for the first time. Several similarities in the ethmoidal and otico-occipital regions of Synechodus and Recent elasmobranchs contrast sharply with conditions found in other fossil sharks, including Hybodus. The neurocrania of Synechodus and Hybodus are profoundly different. Similarities between Synechodus and various groups of Recent elasmobranchs suggest two alternative hypotheses of relationship. In one, Synechodus is a sister taxon to all Recent sharks and rays. In the other, Synechodus would be closely allied to galeomorphs (orectolobids, chiloscyllids, and galeoids) and to Heterodontus. Synechodus and Heterodontus are most parsimoniously regarded as successive sister-groups to galeomorphs"--P. [1]. en_US
dc.format.extent 4820743 bytes
dc.format.mimetype application/pdf
dc.language eng en_US
dc.language.iso en_US
dc.publisher New York, N.Y. : American Museum of Natural History en_US
dc.relation.ispartofseries American Museum novitates ; no. 2804 en_US
dc.subject.lcc QL1 .A436 no.2804, 1985 en_US
dc.subject.lcsh Synechodus dubrisiensis. en_US
dc.subject.lcsh Skull -- Anatomy. en_US
dc.subject.lcsh Chondrichthyes, Fossil. en_US
dc.subject.lcsh Fishes, Fossil. en_US
dc.subject.lcsh Paleontology -- Cretaceous. en_US
dc.title Cranial morphology of the fossil elasmobranch Synechodus dubrisiensis. American Museum novitates ; no. 2804 en_US
dc.type text en_US

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  • American Museum Novitates
    Novitates (Latin for "new acquaintances"), published continuously and numbered consecutively since 1921, are short papers that contain descriptions of new forms and reports in zoology, paleontology, and geology. New numbers are published at irregular intervals.

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