Remarks on HAYASAKA's Protocycloceras cfr., cyclophorum and the Permiam and Carboniferous Orthoconic Nautiloids of Carboniferous Orthoconic Nautiloids of Asia
- 1 January 1936
- journal article
- Published by The Geological Society of Japan in The Journal of the Geological Society of Japan
- Vol. 43 (508), 11-29
- https://doi.org/10.5575/geosoc.43.11