A new crab, Costacopluma concava from the Upper Cretaceous of Nigeria

J. S. H. Collins, and S. F. Morris

1975

Article

Palaeontology 18(4):823-829

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Taxa discussed in this work:

• Archaeopus antennatus
• Costacopluma
• Costacopluma concava
• Costacopluma senegalensis
• Ocypodoidea
• Ptenoplacidae
• Retropluma craverii
• Retropluma eocenica

Taxonomy:

• Ptenoplacidae belongs to Retroplumidae - Collins and Morris (1975)
• Costacopluma belongs to Retroplumidae - Collins and Morris (1975)
• Costacopluma concava belongs to Costacopluma - Collins and Morris (1975)
• Retropluma belongs to Retroplumidae - Collins and Morris (1975)
• Archaeoplax belongs to Retropluma - Collins and Morris (1975)
• Retropluma eocenica belongs to Retropluma - Collins and Morris (1975)
• Retropluma craverii belongs to Retropluma - Collins and Morris (1975)
• Costacopluma senegalensis belongs to Costacopluma - Collins and Morris (1975)
• Archaeopus antennatus belongs to Archaeopus - Collins and Morris (1975)
• Archaeopus vancouverensis belongs to Archaeopus - Collins and Morris (1975)
• Ophthalmoplax belongs to Retroplumidae - Collins and Morris (1975)
• Ophthalmoplax comancheensis belongs to Ophthalmoplax - Collins and Morris (1975)
• Archaeopus belongs to Retroplumidae - Collins and Morris (1975)