Some Upper Cretaceous ammonites from southern Nigeria

P. M. Zaborski

1990

Article

Journal of African Earth Sciences 10(3):565-581

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Taxa discussed in this work:

• Acanthoceras rhotomagense
• Forbesiceras varicostatum
• Phylloceras (Hypophylloceras) bizonatum
• Romaniceras (Yubariceras)
• Romaniceras (Yubariceras) evolutum
• Yubariceras yubarense

Taxonomy:

• Yubariceras yubarense belongs to Romaniceras (Yubariceras) - Matsumoto et al. (1957)
• Phylloceras (Hypophylloceras) bizonatum belongs to Hypophylloceras - Zaborski (1990)
• Nostoceras rotundum belongs to Nostoceras - Zaborski (1990)
• Didymoceras angolaense belongs to Nostoceras rotundum - Zaborski (1990)
• Solenoceras bembense belongs to Solenoceras - Zaborski (1990)
• Forbesiceras varicostatum belongs to Forbesiceras - Zaborski (1990)
• Romaniceras (Yubariceras) evolutum belongs to Romaniceras (Yubariceras) - Zaborski (1990)