Related Overviews


'Ischyromyidae' can also refer to...


More Like This

Show all results sharing this subject:

  • Zoology and Animal Sciences


Show Summary Details

Quick Reference

(order Rodentia, suborder Sciuromorpha)

An extinct family comprising the most ancient ancestors of rodents, which lived from the late Palaeocene to the middle Eocene, probably as scampering, squirrel-like animals. The skull and teeth retain many primitive features. There are more teeth than in later rodents, but the front upper premolar is reduced and lost in some species. The jaw lacks modifications found in later rodents.

Subjects: Zoology and Animal Sciences.

Reference entries

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.