Some abnormally coiled ammonites from the Upper Cretaceous of Angola

O. Haas

1943

Article

American Museum Novitates 1222:1-17

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Taxa discussed in this work:

• Axonoceras angolanum
• Didymoceras angolaense
• Nostoceras mariatheresianum
• Solenoceras bembense

Taxonomy:

• Nostoceras mariatheresianum belongs to Nostoceras - Haas (1943)
• Axonoceras angolanum belongs to Axonoceras - Haas (1943)