Tiunov M.P., Gusev A.E.
В журнале Palaeoworld
Год: 2021 Том: 30 Номер: 3 Страницы: 562-572
A new genus, Tonomochota n. gen., and three new species, T. khasanensis n. sp., T. sikhotana n. sp., and T. major n. sp. of Ochotonidae are described from late Pleistocene cave deposits in the Russian Far East. The description of the new genus was based on thirty-two isolated lower third premolar from the sediments in the Sukhaya and Tetyukhinskaya caves. The new genus was primarily established based on the following characteristics: the triangular anteroconid of the lower third premolar always has a labial fold filled with cement; lingual fold of the anteroconid of the lower third premolar with or without cement; the re-entrant fold(s) on the anteroconid is directed laterally. All of the three new species differ significantly from each other in the size of the lower third premolar.
