Eobasileus

Eobasileus
Temporal range: Late Eocene
Restoration by Charles R. Knight
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Dinocerata
Family: Uintatheriidae
Genus: Eobasileus
Species: E. cornutus
Binomial name
Eobasileus cornutus
Cope, 1872

Eobasileus cornutus ("crowned dawn-king") was a prehistoric species of dinocerate mammal.

Eobasileus (left) and Uintatherium (right)
Skull in the Field Museum

Eobasileus was 4 metres (13 ft) long and stood 2.1 metres (6.9 ft) tall at the shoulder; and with a weight up to 4000 kg (8818 lbs) it was the largest uintathere.[1] It looked very similar to the related Uintatherium. Like Uintatherium, it had three pairs of blunt horns on its skull, possibly covered with skin like the ossicones of a giraffe. The frontal pair may have been composed of keratin, like the horn(s) of a rhinoceros. Eobasileus also had a pair of tusks which were shielded by bony protrusions of the lower jaw.

It is still debated among scientists if Eobasileus and other Uintatheres were in fact related to rhinos, it is possible that the uintatheres were related to the modern day rhino, but most prehistoric rhinos in the Eocene where much smaller than Eobasileus.[2]

References

  1. http://tech.dir.groups.yahoo.com/group/MammalPaleontology/message/374
  2. Palmer, D., ed. (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 235. ISBN 1-84028-152-9.
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