The side-necked turtle family Chelidae : a theory of relationships using shared derived characters. American Museum novitates ; no. 2620

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dc.contributor.authorGaffney, Eugene S.en_US
dc.date.accessioned2005-10-06T16:11:45Z
dc.date.available2005-10-06T16:11:45Z
dc.date.issued1977en_US
dc.description28 p. : ill. ; 26 cm.en_US
dc.descriptionIncludes bibliographical references (p. 24-28).en_US
dc.description.abstract"The South American and Australian side-necked turtles of the family Chelidae are analyzed using the shared derived character technique of Hennig. The following hypotheses of monophyly are tested using the characters indicated ... : Group 1. Family Chelidae (Pseudemydura, Emydura, Elseya, Platemys, Phrynops, Chelus, Chelodina, Hydromedusa) a. Unusually developed lateral cheek emargination. b. Loss of quadratojugal. c. Loss of mesoplastra. Group 2. Subfamily Chelinae (Emydura, Elseya, Platemys, Phrynops, Chelus, Chelodina, Hydromedusa) a. Anterior frontal process at least partially separating nasals. Group 3. Intrafamily Chelodd (Platemys, Phrynops, Chelus, Chelodina, Hydromedusa) a. Symphyseal suture separating lower jaw rami. b. Dorsal processes of exoccipitals meet medially above foramen magnum. c. First vertebral scute narrower than second. Group 4. Tribe Chelini (Phrynops, Chelus, Chelodina, Hydromedusa) a. Lateral margins of parietals distinctly reduced. Group 5. Subtribe Chelina (Chelus, Chelodina, Hydromedusa) a. Cervical vertebrae longer than dorsal vertebrae. b. Medial portions of jugal and postorbital facing more laterally than posteriorly. Group 6. Infratribe Hydromedusad (Chelodina, Hydromedusa) a. Posterolateral process of parietal absent. b. Extremely reduced horizontal process of parietal. c. Quadrate-basiphenoid contact. d. Four claws on forefoot"--P. [1].en_US
dc.format.extent6824899 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/2246/2018
dc.languageengen_US
dc.language.isoen_US
dc.publisherNew York, N.Y. : American Museum of Natural Historyen_US
dc.relation.ispartofseriesAmerican Museum novitates ; no. 2620en_US
dc.subject.lcshChelidaeen_US
dc.subject.lcshChelidae -- Phylogeny.en_US
dc.subject.lcshTurtles -- South Americaen_US
dc.subject.lcshTurtles -- Australiaen_US
dc.subject.lcshReptiles -- South Americaen_US
dc.subject.lcshReptiles -- Australiaen_US
dc.titleThe side-necked turtle family Chelidae : a theory of relationships using shared derived characters. American Museum novitates ; no. 2620en_US
dc.title.alternativeSidenecked turtle family Chelidaeen_US
dc.typetexten_US

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