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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.author Gaffney, Eugene S. en_US
dc.date.accessioned 2005-10-06T16:11:45Z
dc.date.available 2005-10-06T16:11:45Z
dc.date.issued 1977 en_US
dc.identifier.uri http://hdl.handle.net/2246/2018
dc.description 28 p. : ill. ; 26 cm. en_US
dc.description Includes 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.extent 6824899 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. 2620 en_US
dc.subject.lcsh Chelidae en_US
dc.subject.lcsh Chelidae -- Phylogeny. en_US
dc.subject.lcsh Turtles -- South America en_US
dc.subject.lcsh Turtles -- Australia en_US
dc.subject.lcsh Reptiles -- South America en_US
dc.subject.lcsh Reptiles -- Australia en_US
dc.title The side-necked turtle family Chelidae : a theory of relationships using shared derived characters. American Museum novitates ; no. 2620 en_US
dc.title.alternative Sidenecked turtle family Chelidae 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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