Chondrichthyes - Squaliformes - Somniosidae
Alternative spelling: Somniosinae
Parent taxon: Squaliformes according to I. Feichtinger et al. 2024
See also Cahuzac et al. 2007, Hay 1902, Jordan 1963, Mannering and Hiller 2008, Müller and Diedrich 1991, Nelson et al. 2016, Underwood and Schlogl 2013 and Welton and Goedert 2016
Sister taxa: Centrophoridae, Centropterus, Dalatiidae, Dalatioidea, Etmopteridae, Fredipristis, Gibbechinorhinus, Oxynotidae, Paraechinorhinus, Pseudoechinorhinus, Scymnorhinidae, Squalidae, Squalogaleus
Subtaxa: Centroscymnus Centroselachus Cretascymnus Heteroscymnus Laemargus Leiodon Protoxynotus Rhinoscymnus Scymnodalatias Somniosus
Ecology: nektonic carnivore
Distribution:
• Pliocene of Italy (1 collection)
• Miocene of Slovakia (1)
• Oligocene of United States (3: Washington)
• Eocene to Oligocene of United States (1: Washington)
• Eocene of Barbados (1), France (1)
• Paleocene of Austria (1), New Zealand (4)
• Cretaceous of Austria (11), Canada (2: British Columbia), Germany (9), Israel (1), Lebanon (2), Sweden (2)
Total: 40 collections including 52 occurrences