†family Heliscomyidae Korth et al. 1991 (rodent)

Mammalia - Rodentia - Heliscomyidae

Full reference: W. W. Korth, J. H. Wahlert, and R. J. Emry. 1991. A New Species of Heliscomys and Recognition of the Family Heliscomyidae (Geomyoidea: Rodentia). Journal of Vertebrate Paleontology 11(2):247-256

Parent taxon: Geomyoidea according to W. W. Korth et al. 1991

See also Kelly 2009 and Korth and Branciforte 2007

Sister taxa: Eomyidae, Florentiamyidae, Geomyidae, Griphomys, Heteromyidae, Hydentomys

Subtaxa: Apletotomeus Heliscomys Megaheliscomys Passaliscomys Tylionomys

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Ecology: ground dwelling herbivore

Distribution:

• Miocene of Canada (1: Saskatchewan collection)

• Harrisonian of United States (2: Nebraska)

• Arikareean of United States (5: California, Florida, South Dakota)

• Oligocene of Canada (1: Saskatchewan), United States (22: Colorado, Florida, Montana, Nebraska, South Dakota, Wyoming)

• Eocene of Canada (4: Saskatchewan), United States (13: California, Montana, Nebraska, North Dakota, Utah, Wyoming)

Total: 48 collections including 56 occurrences

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