Protolabis

Protolabis; Temporal range: Pliocene–Early Pleistocene PreЄ Є O S D C P T J K Pg N ↓
Conservation status
	Fossil
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Artiodactyla
Suborder:	Ruminantia
Family:	Camelidae
Genus:	Protolabis ; Cope (1876)
Species
	P. barstowensis; P. coartatus; P. gracilis; P. heterodontus; P. inaequidens; P. saxeus;

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Protolabis is an extinct genus of terrestrial herbivore the family Camelidae, endemic to North America from the Oligocene through Miocene 30.8—10.3 mya, existing for approximately 20.5 million years.^[1]

Taxonomy

Protolabis was named by Cope (1876). It was assigned to Camelidae by Cope (1876) and Carroll (1988).^[2]

Four specimens were examined for estimated body mass by M. Mendoza, C. M. Janis, and P. Palmqvist. These specimens were estimated to weigh:

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Fossil distribution is widespread from Nicaragua, Central America to Montana and throughout the western U.S.

↑ PaleoBiology Database: Protolabis, basic info
↑ R. L. Carroll. 1988. Vertebrate Paleontology and Evolution. W. H. Freeman and Company, New York 1-698
↑ M. Mendoza, C. M. Janis, and P. Palmqvist. 2006. Estimating the body mass of extinct ungulates: a study on the use of multiple regression. Journal of Zoology 270(1):90-101

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