Family Hexanchidae Gray 1851 (cow shark)

Chondrichthyes - Hexanchiformes - Hexanchidae

Parent taxon: Hexanchiformes according to B. W. Kent 2018

See also Bendix-Almgreen 1983, Carnevale 2007, Case and Cappetta 1997, Cione and Reguero 1994, Cvancara and Hoganson 1993, Jordan 1963, Kumar and Loyal 1987, Long 1992, Long et al. 1993, Rees 2000, Siverson 1997, Thies 1983, Underwood 2006 and Welton 1974

Sister taxa: Chlamydoselachidae, Eonotidanus, Pachyhexanchus, Paraheptranchias, Paranotidanus, Pseudonotidanidae, Thrinax, Weltonia

Subtaxa: Gladioserratus Heptranchias Hexanchus Monopterhinus Notidanodon Notidanoides Notidanus Notorhynchus Notorynchus

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Ecology: nektonic carnivore

Distribution:

• Quaternary of Brazil (1 collection), United States (2: California, South Carolina)

• Pliocene of Australia (1), Mexico (1), the Netherlands (1), United States (1: North Carolina)

• MN 13 of Portugal (1)

• Hemphillian of United States (1: California)

• Miocene to Pliocene of Argentina (1), Chile (1)

• Miocene of Australia (4), Austria (2), Colombia (1), Costa Rica (2), Denmark (2), France (7), Germany (1), India (1), Italy (2), Japan (7), Malta (2), Mexico (1), the Netherlands (3), Panama (1), Peru (1), Poland (2), Portugal (3), Slovakia (2), South Africa (1), United States (19: California, Delaware, Florida, Maryland, New Jersey, North Carolina, South Carolina, Virginia)

• Oligocene of Australia (2), France (1), Germany (2), Hungary (1), Japan (2), the Netherlands (1), New Zealand (1), Ukraine (1), United States (2: California, North Carolina)

• Eocene of Antarctica (3), Australia (2), Canada (1: British Columbia), Egypt (8), India (1), Italy (1), Jordan (2), Namibia (1), New Zealand (1), Spain (1), the United Kingdom (10), United States (5: New Jersey, Oregon, Virginia, Washington), Uzbekistan (1)

• Paleocene of Denmark (1), France (1), Kazakhstan (1), Morocco (1), New Zealand (2), Sweden (2), United States (3: California, New Jersey)

• Cretaceous to Paleogene of United States (1: New Jersey)

• Cretaceous of Antarctica (2), Argentina (1), Australia (1), Germany (1), India (1), Israel (2), Japan (4), Lebanon (1), New Zealand (1), the Russian Federation (2), Syria (3), the United Kingdom (2), United States (3: California, Texas)

• Jurassic of France (2), Germany (3), Poland (2), Sweden (1)

• Permian of Japan (1)

Total: 170 collections including 204 occurrences

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