Chondrichthyes - Cochliodontiformes
Parent taxon: Cochliodontomorpha according to R. van der Laan 2019
See also Goto and Okura 2004, Long 2011, Nelson 2006 and Nelson et al. 2016
Sister taxa: Chondrenchelyiformes, Menaspiformes, Squalorajiformes
Subtaxa: Cochliodontidae Psephodontidae Solenodus
Ecology: nektonic carnivore
Distribution:
• Permian of Australia (1 collection), Japan (1), Oman (5), Pakistan (8), the Russian Federation (2), Thailand (1), United States (6: Kansas, New Mexico, Texas, Wyoming)
• Carboniferous of Belgium (1), Egypt (1), Japan (1), the Russian Federation (2), the United Kingdom (21), United States (18: Arizona, Indiana, Iowa, Kansas, Nebraska, Ohio, Pennsylvania, Texas)
• Devonian of Poland (1), United States (1: California)
Total: 70 collections including 111 occurrences