Choerolophodon undetermined

Abbas, Sayyed Ghyour, Babar, Muhammad Adeeb, Khan, Muhammad Akbar, Nisa, Badar Un, Nawaz, Muhammad Khalil & Akhtar, Muhammad, 2022, New proboscidean material from the Siwalik Group of Pakistan with remarks on some species, PaleoBios 38, pp. 1-12 : 8

CHOEROLOPHODON SP.

FIG. 3I

Referred specimen— PUPC 15/252, an isolated partially broken? left dp4 (Dhok Pathan).

Description and remarks— PUPC 15/252 is an extremely worn dp4 that is partially broken. Much of the anterior cingulid and anterior lophid are missing ( Fig. 3J). The dentine is well-exposed and only enamel of the lophid borders is preserved. The preserved enamel is extremely choerodont and ptychodont. Cement is also present.

Extreme ptychodonty and choerolophodonty suggest PUPC 15/252 is assignable to Choerolophodon ( Tassy 1983, 1985, Sanders and Miller 2002, Abbas et al. 2018). On the other hand, the extreme wear also makes it difficult to attribute the specimen to the dominant Middle Siwalik choerolophodont species, Choerolophodon corrugatus with certainty because this species is closely related to the European species, C. pentelici ( Gaudry and Lartet, 1856) , not the African species C. kisumuensis ( MacInnes, 1942) . Both these European and African species differ in the choerodonty, ptychodonty, and cement deposition. Hence, the specimen is here referred to Choerolophodon sp.