Template:Matsumoto, 1977

• Matsumoto, T. 1977. Some heteromorph ammonites from the Cretaceous of Hokkaido: studies of the Cretaceous ammonites from Hokkaido and Saghalien-XXXI. Memoirs of the Faculty of Science, Kyūsyū University. Series D, Geology 23(3): 303–366. DOI: 10.5109/1544178  
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Nomenclatural acts

• Date of publication: 25 February 1977

New names

(List may be incomplete)

• Hyphantoceras transitorium sp. nov. [p. 313]
• Hyphantoceras ? heteromorphum sp. nov. [p. 314]
• Yezoceras gen. nov. [p. 316]
• Yezoceras nodosum sp. nov. [p. 317]
• Yezoceras miotuberculatum sp. nov. [p. 320]
• Nostoceras hetonaiense sp. nov. [p. 322]
• Eubostrychoceras densicostatum sp. nov. [p. 332]
• Muramotoceras gen. nov. [p. 334]
• Muramotoceras yezoense sp. nov. [p. 335]
• Muramotoceras laxum sp. nov. [p. 337]
• Neocrioceras ? undulosum sp. nov. [p. 343]
• Scalarites densicostatus sp. nov. [p. 349]
• Trianglites gen. nov. [p. 350]
• Trianglites antiqus sp. nov. [p. 350]
• Rhyoptychoceras gen. nov. [p. 352]
• Rhyoptychoceras mikasaense sp. nov. [p. 352]
• Dihamites gen. nov. [p. 354]
• Dihamites obiraensis sp. nov. [p. 354]
• Heteroptychoceras gen. nov. [p. 356]
• Heteroptychoceras obatai sp. nov. [p. 357]