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†Neorthoceras Shimizu & Obata 1936
urn:lsid:organismnames.com:name:3188985
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†Neorthoceras Shimizu & Obata 1936
Shimizu & Obata 1936. Remarks on Hayasaka's Protocycloceras cfr. cyclophorum and the Permian and Carboniferous Orthoconic Nautiloids of Asia. Journal of the Geological Society of Japan, 43(508) 1936: pp. 11-29