†Gripholagomys Green 1972 (pika)
Mammalia - Lagomorpha - Ochotonidae
Full reference: M. Green. 1972. Lagomorpha from the Rosebud Formation, South Dakota . Journal of Paleontology 46(3):377-385
Parent taxon: Ochotonidae according to M. Green 1972
Sister taxa: Alloptox, Amphilagus, Bellatona, Cuyamalagus, Desmatolagus, Hesperolagomys, Kenyalagomys, Lagopsis, Ochotona, Ochotonoides, Ochotonoma, Oklahomalagus, Oreolagus, Piezodus, Prolagus, Russellagus, Sinolagomys, Titanomys
Subtaxa: Gripholagomys lavocati
Type: Gripholagomys lavocati
Ecology: ground dwelling herbivore