Living predominantly underground.

Mammals (7)

Ctenomyini (Tribe) (Lesson, 1842) M.C. McKenna & S.K. Bell, 1997 - tuco-tucos

†Epoicotherium (Genus) Simpson, 1927, nom. nov.

†Epoicotherium unicum (Douglass, 1905)

Rodentia (Order) Bowdich, 1821 - rodents

†Xenocranium (Genus) Colbert, 1942

†Xenocranium pileorivale Colbert, 1942

†Yanoconodon allini Z.-X. Luo et al., 2007

Reptiles (1)

Bachia (Genus) Gray, 1845