Stratum typicum: Khadro Formation, Danian, Paleocene
- Eames, 1952. A contribution to the study of the Eocene in Western Pakistan and Western India. C. The description of the Scaphopoda and Gasteropoda from standard sections in the Rakhi Nala and Zinda Pir areas of the Western Punjab and in the Kohat district. Philosophical Transactions of the Royal Society, 236 B 1952: 1-168.