Notohippus

Notohippus is an extinct genus of notoungulate mammal from the Early Miocene (Santacrucian in the SALMA classification) Santa Cruz Formation, Río Bote, Argentina.^[1]

Notohippus Temporal range: Early Miocene (Santacrucian) ~17.5–16.3 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Notoungulata
Family:	†Notohippidae
Genus:	†Notohippus Ameghino 1891
Species
N. toxodontoides (type) Ameghino 1891

Description

Notohippus had high crowned teeth with cementum, similar to the situation of grazing equids.^[2][3]