The side-necked turtle family Chelidae : a theory of relationships using shared derived characters

Title Variants

Alternative: Sidenecked turtle family Chelidae

Related Titles

Series: American Museum novitates, no. 2620

By

Gaffney, Eugene S.

Type

Book

Material

Published material

Publication info

New York, N.Y, American Museum of Natural History, c1977

Notes

Title from caption.

"May 10, 1977."

"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].

Subjects

Australia , Chelidae , Classification , Phylogeny , Reptiles , South America , Turtles

Call Number

QL1 .A436 no.2620, 1977

Language

English

Identifiers

LCCN: https://lccn.loc.gov/77365803
OCLC: 3204514