Family Sphyrnidae Gill 1872 (hammerhead shark)

Chondrichthyes - Carchariniformes - Sphyrnidae

Alternative spelling: Sphyrninae

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

See also Adnet et al. 2007, Case 1981, Cicimurri and Knight 2009, Compagno 2005, Hay 1902, Jordan 1963 and Purdy et al. 2001

Sister taxa: Carcharhinidae, Hemigaleidae, Leptochariidae, Paratriakis, Proscylliidae, Protoscyliorhinus, Pseudotriakidae, Pterolamiops, Scyliorhinidae, Squatigaleus, Triakidae

Subtaxa: Cestrorhinus Eusphyra Platysqualus Reniceps Sphyra Sphyrichthys Sphyrna Sphyrnias Zygaena

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Ecology: nektonic carnivore

Distribution:

• Quaternary of Ecuador (1 collection), Japan (1), United States (1: Georgia)

• Pliocene of Angola (1), Colombia (1), Italy (1), Libya (1), South Africa (1), United States (2: California, North Carolina)

• MN 13 of Portugal (2)

• Hemphillian of Costa Rica (1)

• Miocene to Pliocene of Australia (1), Ecuador (1), Japan (1), Mexico (1), United States (1: California)

• Miocene of Argentina (2), Australia (3), Austria (1), Brazil (5), Colombia (2), Costa Rica (1), Cuba (2), the Czech Republic (1), Egypt (1), France (7), India (5), Japan (2), Madagascar (1), Malta (1), Mexico (1), Panama (12), Peru (3), Poland (1), Portugal (3), Saudi Arabia (1), Slovakia (1), United States (13: California, Florida, Maryland, New Jersey, North Carolina, South Carolina, Virginia), Venezuela (6)

• Oligocene to Miocene of Argentina (1), Peru (1)

• Oligocene of France (1), Germany (1), Hungary (1), Pakistan (1), United States (3: California, Florida, South Carolina)

• Eocene of Egypt (1), Nigeria (1), Saudi Arabia (1), Togo (1), United States (2: Alabama, Georgia), Western Sahara (2)

• Paleocene of United States (2: Maryland)

Total: 112 collections including 149 occurrences

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