Metarhinus

Metarhinus
Temporal range: Eocene
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Perissodactyla
Family: Brontotheriidae
Subfamily: Dolichorhininae
Genus: Metarhinus
Osborn (1908)
Species

M. fluvialtilis
M. abbotti
M. pater

Metarhinus is a genus of brontothere endemic to North America during the Eocene living from 46.2—42 mya, existing for approximately 4.2 million years.[1]

Taxonomy

Metarhinus was named by Osborn (1908). It is not extant. Its type is Metarhinus fluviatilis. It was assigned to Brontotheriidae by Osborn (1908) and Carroll (1988); and to Dolichorhininae by Mader (1998).[2]

Morphology

A single specimen was examined by M. Mendoza for body mass and was estimated to have a weight of 210.6 kg (460 lb).[3]

References

  1. PaleoBiology Database: Mesatirhinus, basic info
  2. B. J. Mader. 1998. Brontotheriidae. In C. M. Janis, K. M. Scott, and L. L. Jacobs (eds.), Evolution of Tertiary Mammals of North America 1:525-536
  3. 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
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