抄録
The Middle Jurassic sediments of Kutch have been known all over the world as a veritable storehouse of diverse fauna, particularly ammonites. The present investigation has brought to light a rich haul of gastropods hitherto unknown in Kutch. The present assemblage includes eleven new species belonging to nine genera. They are : Colpomphalus jumarense sp. nov.; Emarginula karuna sp. nov.; Helicacanthus chanda sp. nov.; Riselloidea tagorei sp. nov.; R. elongata sp. nov.; Onkospira kutchensis sp. nov.; Proconulus jadavpuriensis sp. nov.; Neritopsis (Neritopsis) patchamensis sp. nov.; N. (Hayamiella) sankhamala sp. nov.; Hayamia mitra sp. nov. and Globularia spathi sp. nov. The assemblage shows strong Tethyan affinity at generic level, but species display marked endemism since Kutch belongs to a distinct Indo-Madagascan Faunal Province. The present finding refines and widens the spatiotemporal distribution of these genera.
