The Siwalik range of Pakistan have been explored accurately by Akhtar (1992) as a consequence of this many new species has been originated Miotragocerus dhokpthanensis, Pachyportax giganteus, Selenopotax dhokpathanensis, Proamphibos dhokawanensis, Bubalus bathygnathus, Bubalus jarikasensis,Boskashmerikus, Indoredunca gaalensis, Antelope intermidius, Gazelle padriensis.
In the American menagerie number of specimens were unearthed from Nagri villages and neighborhood near Nagri convalescent homes (Colbert, 1935).
Bovids of Siwaliks were methodically investigated in the American menagerie by the pioneer (1913)