Oxyperas (Pseudoxyperas) (clam)
Bivalvia - Cardiida - Mactridae
Alternative spelling: Pseudoxyperas
Parent taxon: Oxyperas according to P. A. Maxwell 1978
See also Sepkoski 2002
Sister taxa: Oxyperas callistoides, Oxyperas deserta, Oxyperas parinensis, Oxyperas steinmanni
Subtaxa: Oxyperas (Pseudoxyperas) exensis
Ecology: facultatively mobile infaunal suspension feeder
Distribution:
• Waitakian of New Zealand (1 collection)
• Eocene of Antarctica (5), New Zealand (2)
Total: 8 collections each including a single occurrence