Late Hemphillian Colubrid Snakes (Serpentes, Colubridae) from the Gray Fossil Site of Northeastern Tennessee

Autor: Steven E. Jasinski, David A. Moscato
Rok vydání: 2017
Předmět:
Zdroj: Journal of Herpetology. 51:245
ISSN: 0022-1511
DOI: 10.1670/16-020
Popis: The Gray Fossil Site (GFS) of northeastern Tennessee is a late Hemphillian fossil locality in the southern Appalachian mountain region of eastern North America with a diverse vertebrate fauna. Snakes make up a substantial microfossil portion of the GFS herpetofauna, particularly the Colubridae, comprised of members of the Colubrinae and Natricinae. Seven colubrid taxa have been identified from the site so far, including three natricines (cf. Neonatrix, Nerodia, Thamnophis) and at least four colubrines (Coluber/Masticophis, Pantherophis, Pituophis, gen. et sp. nov.). Indeed, cf. Neonatrix and the new genus (and species) are the only extinct genera identified. Although Neonatrix is tentatively identified for the first time east of Nebraska, the new species represents a distinct taxon. In addition, the oldest reported definitive occurrence of Masticophis is presented herein. Some of the snakes suggest a pond or other aquatic habitat at GFS, particularly cf. Neonatrix and Nerodia, whereas others, suc...
Databáze: OpenAIRE