Pseudotomus

Pseudotomus
Temporal range: Eocene
USNM V 17160, a skeleton of P. robustus (formerly Ischyrotomus oweni)
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Suborder: Sciuromorpha
Infraorder: Protrogomorpha
Family: †Ischyromyidae
Genus: †Pseudotomus
Cope, 1872
Type species
Pseudotomus hians
Cope, 1872
Species
  • P. hians (type) Cope, 1872
  • P. californicus (Wilson, 1940)
  • P. eugenei (Burke, 1935)
  • P. horribilis (Wood, 1962)
  • P. johanniculi (Wood, 1974)
  • P. littoralis (Wilson, 1949)
  • P. petersoni (Matthew, 1910)
  • P. robustus (Marsh, 1872)
  • P. timmys Storer, 1988
Synonyms
  • Ischyrotomus Matthew, 1910
Skeletons of Sinopa (left) and "Ischyrotomus oweni" (Pseudotomus robustus, right) mounted in fighting postures at the National Museum of Natural History

Pseudotomus is an extinct genus of ischyromyid rodent from Eocene North America. Pseudotomus was a large early rodent with habits similar to ground squirrels. It belongs to the tribe Manitshini and the subfamily Paramyinae.

"Ischyrotomus" is a junior synonym of Pseudotomus, with Ischyrotomus oweni as a synonym of Pseudotomus robustus in particular.

References

  1. ↑ Bertrand, Ornella C.; Amador-Mughal, Farrah; Lang, Madlen M.; Silcox, Mary T. (2019). "New Virtual Endocasts of Eocene Ischyromyidae and Their Relevance in Evaluating Neurological Changes Occurring Through Time in Rodentia". Journal of Mammalian Evolution. 26 (3): 345–371. doi:10.1007/s10914-017-9425-6. S2CID 254702826.
  2. ↑ Korth, William W. (1985). "The Rodents Pseudotomus and Quadratomus and the Content of the Tribe Manitshini (Paramyinae, Ischyromyidae)". Journal of Vertebrate Paleontology. 5 (2): 139–152. ISSN 0272-4634. JSTOR 4523038.