Duncan, P. M. & Sladen, W. P. (1886). Fossil Echinoidea of western Sind and the Coast of Bilúchístán and of the Persian Gulf, from the Tertiary Formations. Fasc. VI. The Fossil Echinoidea from the Makrán Series (Pliocene) of the Coast of Bilúchístán and of the Persian Gulf. Palaeontologia Indica. Ser. XIV 1, 368-382.
190318
Duncan, P. M. & Sladen, W. P.
1886
Fossil Echinoidea of western Sind and the Coast of Bilúchístán and of the Persian Gulf, from the Tertiary Formations. Fasc. VI. The Fossil Echinoidea from the Makrán Series (Pliocene) of the Coast of Bilúchístán and of the Persian Gulf