Chondrichthyes - Odontaspidida - Isuridae
Parent taxon: Isuroidea according to J. Herman 1977
See also Case 1981, Deraniyagala 1969, Miller 1967 and Weiler 1938
Sister taxon: Lamiostomatidae
Subtaxa: Galeolamna Isuropsis Karaisurus Oxyrhina
Ecology: nektonic carnivore
Distribution:
• Quaternary of Aruba (1 collection)
• Pliocene of Italy (1), South Africa (1)
• Neogene of North Pacific (2), South Pacific (4), United States (1: Hawaii)
• Miocene of Australia (4), Czechia (1), Italy (1), New Zealand (2), Portugal (1), Slovakia (1), Sri Lanka (2), United States (5: Maryland, New Jersey, South Carolina)
• Oligocene of Australia (3), Venezuela (1)
• Eocene to Oligocene of the Congo-Kinshasa (2)
• Eocene of Angola (5), Barbados (1), Belgium (1), Egypt (1), Namibia (1), Qatar (1), Romania (1), the United Kingdom (3), United States (1: Mississippi)
• Paleocene of United States (1: Montana)
• Cretaceous of France (6), Poland (1), Switzerland (1)
Total: 57 collections including 63 occurrences