Mammalia - Rodentia - Ischyromyidae
Alternative combination: Titanotheriomys veterior
Synonym: Titanotheriomys wyomingensis Wood 1937
Full reference: W. D. Matthew. 1903. The fauna of the Titanotherium Beds at Pipestone Springs, Montana. Bulletin of the American Museum of Natural History 19(6):197-226
Belongs to Ischyromys according to T. H. Heaton 1996
See also Korth 1994, Matthew 1903, Wood 1937, Wood 1969, Wood 1976 and Wood 1980
Sister taxa: Ischyromys blacki, Ischyromys brevidens, Ischyromys douglassi, Ischyromys junctus, Ischyromys parvidens, Ischyromys typus, Ischyromys typus nanus
Type specimens:
- Ischyromys veterior: AMNH 9658, a mandible (dentary). Its type locality is Pipestone Springs, which is in a Chadronian terrestrial claystone in the Renova Formation of Montana.
- Titanotheriomys wyomingensis: AMNH 14579, a skull (skull and associated dentaries). Its type locality is Beaver Divide Locality 4, which is in a Chadronian terrestrial horizon in the White River Formation of Wyoming.
Ecology: ground dwelling herbivore
Distribution:
• Oligocene of United States (1: Nebraska collection)
• Eocene of Canada (1: Saskatchewan), United States (28: Colorado, Montana, Nebraska, North Dakota, Wyoming)
Total: 30 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.