Contribution
In defense of Amahuacatherium (Proboscidea: Gomphotheriidae)
Campbell, Kenneth E.; Frailey, Carl D.; Romero-Pittman, Lidia
Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen Band 252 Heft 1 (2009), p. 113 - 128
publié: Apr 16, 2009
DOI: 10.1127/0077-7749/2009/0252-0113
ArtNo. ESP155025201007, Prix: 29.00 €
Abstract
The identification of Amahuacatherium peruvium as a late Miocene gomphothere from Amazonian Peru has been challenged, with some authors claiming the specimen is only a western Amazonian example of the widespread, late Pleistocene genus Haplomastodon. Arguments against placing Amahuacatherium in synonymy with Haplomastodon include diagnostic dental characters, the presence in the former of lower tusks in adult individuals, and the upper Miocene age of the deposits from which it came. Amahuacatherium, as originally reported, is the oldest known North American mammal to enter South America in an early phase of the Great American Faunal Interchange.
Mots-clefs
amazon basin • amahuacatherium • cuvieroniinae • faunal interchange • gomphothere • haplomastodon • miocene