Chondrichthyes - Synechodontiformes
Full reference: C. J. Duffin and D. J. Ward. 1993. The Early Jurassic Palaeospinacid sharks of Lyme Regis, southern England. Belgian Geological Survey, Professional Papers, Elasmobranches et Stratigraphie 264:53-102
Parent taxon: Galeomorphi according to R. van der Laan 2019
See also Delsate 2003, Delsate et al. 2002, Duffin 1998, Duffin and Ward 1993, Ginter et al. 2010, Johns 1997, Nelson et al. 2016, Rees 2000, Stumpf and Kriwet 2019, Underwood 2006, Underwood et al. 1999, Underwood and Ward 2004 and Yamagishi 2004
Sister taxa: Coquanodon, Erquitaia, Heckelodes, Heterodontiformes, Hypsobatis, Odontorhytis, Onchopristus, Orectolobiformes, Rajorhina, Reifia, Youssoubatis
Subtaxa: Keichouodus Mucrovenator Palaeospinacidae Parascylloides Polyfaciodus Pseudonotidanidae Safrodus Wimanodon
Ecology: nektonic carnivore
Distribution:
• Eocene of Barbados (1 collection), Belgium (4), Chile (1), United States (1: California)
• Paleocene of Belgium (6), Denmark (1), France (7), New Zealand (4), the Russian Federation (1), Sweden (1), United States (2: Maryland)
• Cretaceous of Algeria (1), Angola (2), Antarctica (3), Argentina (1), Australia (1), Belgium (11), Canada (5: Alberta, British Columbia), Chile (2), France (15), Germany (7), Israel (2), Japan (3), Kazakhstan (1), Lithuania (9), the Netherlands (1), New Zealand (1), Poland (3), the Russian Federation (6), Sweden (20), Ukraine (7), the United Kingdom (61), United States (21: Montana, New Jersey, New Mexico, North Dakota, South Dakota, Wyoming)
• Jurassic to Cretaceous of France (2)
• Jurassic of Belgium (4), Denmark (1), France (11), Germany (20), Luxembourg (6), Poland (2), Spain (6), Sweden (1), the United Kingdom (9)
• Triassic to Jurassic of Belgium (2)
• Triassic of Austria (1), Belgium (4), Bulgaria (1), Canada (33: British Columbia), China (10), France (17), Germany (9), Japan (23), Luxembourg (2), the Netherlands (2), Oman (10), Poland (3), the Russian Federation (3), Svalbard and Jan Mayen (1), Türkiye (1), the United Kingdom (22), United States (3: Idaho, Nevada)
• Permian of Oman (1), the Russian Federation (2)
Total: 424 collections including 582 occurrences