Archaeohyrax

Archaeohyrax is a genus of extinct notoungulate mammal known from the Middle Eocene to Oligocene of Argentina and Bolivia.^[1][2]

Archaeohyrax Temporal range: Mid Eocene-Late Oligocene (Mustersan-Deseadan) ~48.0–23.03 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Archaeohyrax patagonicus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Notoungulata
Family:	†Archaeohyracidae
Genus:	†Archaeohyrax Ameghino, 1897
Type species
†Archaeohyrax patagonicus Ameghino, 1897
Species
A. patagonicus Ameghino 1897 A. proavus Ameghino 1897 A. propheticus Ameghino 1897 A. suniensis Billet et al. 2009

Description

The holotype of the type species, A. patagonicus, is a skull with a tall, blunt muzzle, and high-crowned cheek teeth. When the skull is compared to those of the superficially similar hyraxes, the remains suggest a small animal about 45 centimetres (18 in) long. Fossils of Archaeohyrax have been found in the Sarmiento, Agua de la Piedra, and Deseado Formations of Argentina and the Salla Formation of the Salla-Luribay Basin of Bolivia.^[3][4]