A phylogeny and classification of the higher categories of turtles. Bulletin of the AMNH ; v. 155, article 5

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dc.contributor.authorGaffney, Eugene S.en_US
dc.date.accessioned2005-10-06T14:25:42Z
dc.date.available2005-10-06T14:25:42Z
dc.date.issued1975en_US
dc.descriptionp. 389-436 : ill. ; 26 cm.en_US
dc.descriptionIncludes bibliographical references (p. 433-436).en_US
dc.description.abstract"Shared derived characters of the basicranium provide the basis for a new theory of relationships and a new classification of the major groups of living and extinct turtles. Post-Triassic turtles are characterized by a jaw-closing mechanism where the main adductor tendon rides over a trochlea, a condition unique among vertebrates. A study of the trochlear mechanism and associated basicranial adaptations for akinesis suggests that the trochlea evolved independently in cryptodires and pleurodires. Cranial arteries and the canals and foramina associated with them provide characters used to develop hypotheses of relationships among the Cryptodira. The taxon 'Amphichelydia,' characterized by primitive features and supposedly containing the ancestors of recent turtles, is rejected and its members distributed to monophyletic taxa"--P. 391.en_US
dc.format.extent10065447 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/2246/614
dc.languageengen_US
dc.language.isoen_US
dc.publisherNew York : American Museum of Natural Historyen_US
dc.relation.ispartofseriesBulletin of the American Museum of Natural History ; v. 155, article 5en_US
dc.subject.lcshTurtles -- Evolution.en_US
dc.subject.lcshTurtlesen_US
dc.subject.lcshTurtles, Fossil.en_US
dc.subject.lcshTurtles -- Phylogeny.en_US
dc.titleA phylogeny and classification of the higher categories of turtles. Bulletin of the AMNH ; v. 155, article 5en_US
dc.title.alternativeTurtle phylogenyen_US
dc.typetexten_US

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Bulletin of the American Museum of Natural History