Family Isuridae Gray 1851 (mackerel shark)

Chondrichthyes - Odontaspidida - Isuridae

Parent taxon: Isuroidea according to J. Herman 1975

See also Case 1981, Deraniyagala 1969, Miller 1967 and Weiler 1938

Sister taxon: Lamiostomatidae

Subtaxa: Galeolamna Isuropsis Oxyrhina

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Ecology: nektonic carnivore

Distribution:

• Pliocene of Italy (1 collection), South Africa (1), United States (1: Oregon)

• Hemphillian of Costa Rica (1)

• Neogene of South Pacific (4), United States (3: California, Hawaii)

• Miocene of Australia (5), Costa Rica (1), the Czech Republic (1), Italy (1), Japan (14), Mexico (1), the Netherlands (1), Poland (1), Portugal (1), Slovakia (3), Sri Lanka (2), United States (16: California, Maryland, New Jersey, South Carolina, Virginia)

• Oligocene of Australia (1)

• Eocene of Australia (1), Egypt (2), Namibia (1), Nigeria (2), Saudi Arabia (1), the United Kingdom (4), United States (3: Alabama, Mississippi, New Jersey)

• Paleocene of Denmark (1), United States (3: Montana, New Jersey)

• Cretaceous of France (4), Switzerland (1), United States (2: New Jersey, Texas)

Total: 84 collections including 98 occurrences

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