Trogosus is an extinct genus of tillodont mammal. Fossils have been found in Wyoming, California,[2] and British Columbia,[3] and date from the Eocene between 54.8 and 33.7 million years ago.

Trogosus
Temporal range: Early Eocene–Middle Eocene
Trogosus hyracoides skull at the National Museum of Natural History
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Tillodontia
Family: Esthonychidae
Subfamily: Trogosinae
Genus: Trogosus
Leidy 1871
Species[1]
  • T. castoridens (type)
  • T. gazini
  • T. grangeri
  • T. hillsii
  • T. hyracoides
  • T. latidens
Life restoration

Trogosus was a bear-like herbivore with a large, short skull and flat feet, and had a skull 35 cm (14 in) long with an estimated body weight of 150 kg (330 lb).[4] It had large, rodent-like incisors, which continued growing throughout the creature's life. Judging from the heavily worn molar teeth, Trogosus fed on rough plant material, such as roots and tubers.[5]

Notes

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  1. ^ Trogosus in the Paleobiology Database. Retrieved July 2013.
  2. ^ Miyata, Kazunori; Deméré, Thomas A. (17 February 2016). "New material of a 'short-faced' Trogosus (Mammalia, Tillodontia) from the Delmar Formation (Bridgerian), San Diego County, California, U.S.A." Journal of Vertebrate Paleontology. 36 (3): e1089878. doi:10.1080/02724634.2016.1089878. S2CID 130776132. Retrieved 11 April 2022.
  3. ^ Russell 1935
  4. ^ Kemp 2005, p. 240
  5. ^ Palmer 1999, p. 236

References

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