†subfamily Pliotrematinae Fowler 1947 (saw shark)
Chondrichthyes - Pristiophoriformes - Pristiophoridae
Parent taxon: Pristiophoridae according to I. W. Keyes 1979
Sister taxa: Pristiophorinae, Pristiophorus
Subtaxa: Ikamauius
Ecology: nektobenthic carnivore
Distribution:
• Pliocene of New Zealand (4 collections)
• Miocene of New Zealand (2)
• Waitakian of New Zealand (2)
• Oligocene of New Zealand (1)
• Cretaceous of New Zealand (1)
Total: 10 collections each including a single occurrence