First Jurassic triconodont from South America

Title Variants

Alternative: South American Jurassic triconodont

Related Titles

Series: American Museum novitates, no. 3580

By

Rougier, Guillermo W.
Garrido, Alberto, paleontologist.
Gaetano, Leandro
Puerta, Pablo
Corbitt, Cynthia.
Novacek, Michael J.

Type

Book

Material

Published material

Publication info

New York, NY American Museum of Natural History c2007

Notes

Caption title.

"September 6, 2007."

A new mammal from the Middle Jurassic Cañadon Asfalto Formation, Patagonia, Argentina, is reported. The specimen, an isolated lower? molariform, is erected as the type of a new genus and species of triconodont, Argentoconodon fariasorum. The molariform presents a peculiar combination of primitive and derived features that makes recognition of its affinities challenging. Argentoconodon shares similarities with poorly known triconodonts from the Jurassic of North America and Morocco and lacks the diagnostic traits of the triconodontid triconodonts. Argentoconodon resembles in general the paraphyletic "amphilestid" triconodonts. The specimen is too incomplete to warrant broader interpretations, but it suggests that at least this lineage of South American mammals was distinctly autapomorphic, perhaps with an origin in forms with a broader geographical distribution.

Subjects

Argentina , Argentoconodon fariasorum , Chubut , Jurassic , Mammals, Fossil , Paleontology

Call Number

QL1 .A436 no.3580 2007

Language

English

Identifiers

DOI: https://doi.org/10.1206/0003-0082(2007)3580[1:FJTFSA]2.0.CO;2
OCLC: 171032382