†family Ischyromyidae Alston 1876 (rodent)

Mammalia - Rodentia - Ischyromyidae

Parent taxon: Rodentia according to W. W. Korth 2014

See also Dunn and Rasmussen 2007, Flower and Lydekker 1891, Lambe 1908, McKenna and Bell 1997 and Wood 1958

Sister taxa: Alagomyidae, Allactagidae, Allomyidae, Anomalomyidae, Anomaluroidea, Aplodontoidea, Archetypomyidae, Callodontomys, Castoroidea, Cavina, Cercolabidae, Conilurus, Ctenohystrica, Cylindrodontidae, Diatomyidae, Dolosimus, Downsimys, Echinomyidae, Ectropomys, Epeiromys, Eryomyidae, Eryomyina, Fiber, Geomorpha, Geomyoidea, Gliridae, Gliroidea, Homocentrus, Hystricognatha, Hystricomorpha, Ivanantonia, Megacricetodontidae, Muriformia, Mylagaulidae, Myodonta, Myomorpha, Pairomys, Paramyidae, Petauristidae, Protrogomorpha, Pseudomys, Quercymys, Remyidae, Sciurognathi, Sciuroidea, Sciuromorpha, Siphneidae, Taeniodus, Theridomyoidea, Yuomyidae, Zamoramys, Zapodidae, Zelomyidae

Subtaxa: Acritoparamys Ailuravinae Apatosciuravus Churcheria Decticadapis Hulgana Ischyromyinae Ischyromys Leptotomus Lophiparamys Microparamyinae Notoparamys Paramyinae Paramys Pelycomys Pseudoparamyinae Rapamys Tapomys Thisbemys

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Ecology: ground dwelling herbivore

Distribution:

• Oligocene of United States (73: Colorado, Montana, Nebraska, North Dakota, South Dakota, Wyoming collections)

• Eocene of Belgium (2), Canada (8: Northwest Territories, Saskatchewan), China (8), France (19), Germany (4), India (2), Kazakhstan (1), Mexico (1), Portugal (1), Spain (5), Switzerland (1), the United Kingdom (11), United States (583: California, Colorado, Mississippi, Montana, Nebraska, Nevada, New Mexico, North Dakota, Oregon, South Dakota, Texas, Utah, Virginia, Wyoming)

• Paleocene of France (1), United States (15: Colorado, Montana, Wyoming)

Total: 735 collections including 1047 occurrences

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