Eocene archaeohyracids (Mammalia: Notoungulata: Hegetotheria) from the Puna, northwest Argentina

被引：23
|
作者：
Reguero, Marcelo A. [1 ,2 ]
Croft, Darin C. [3 ]
Lopez, Guillermo M. [1 ]
Alonso, Ricardo N. [2 ,4 ]
机构：
[1] Museo La Plata, Div Paleontol Vertebrados, La Plata, Buenos Aires, Argentina
[2] Consejo Nacl Invest Cient & Tecn, RA-1917 Buenos Aires, DF, Argentina
[3] Case Western Reserve Univ, Dept Anat, Cleveland, OH 44106 USA
[4] Univ Nacl Salta, Fac Ciencias Nat, RA-4400 Buenos Aires 177, Salta, Argentina
来源：
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES | 2008年 / 26卷 / 02期
关键词：
Geste Formation; NW Argentina; Eocene; Notoungulata; Archaeohyracidae;
D O I：
10.1016/j.jsames.2008.05.004
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
A new genus and species of basal hegetothere mammal, Punahyrax bondesioi, is described from the middle-late? Eocene Geste Formation of northwestern (Catamarca and Salta provinces) Argentina. The new species is based on isolated teeth and mandibles and represents the first well-identified archaeohyracid from northwestern Argentina, and the earliest extra-Patagonian record of the family. It is characterized by its small-size and a short talonid on the molars. Though still poorly documented, this new taxon may provide key-data for the problem of the origin and basal of hegetotheres phylogeny. These fossils show the importance of northwestern Argentina (Puna area) in the early evolution of the extinct order Notoungulata and the poor state of our knowledge there. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：225 / 233
页数：9
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