Order Squaliformes Goodrich 1909 (elasmobranch)
Parent taxon: Squalomorphi according to R. van der Laan 2019
See also Adnet et al. 2008, Biddle 1993, Cahuzac et al. 2007, Cassier 1966, Cicimurri et al. 2022, Cvancara and Hoganson 1993, Kent 2018, Long 1992, Long 2011, Maisch IV et al. 2025, Nelson et al. 2016, Purdy et al. 2001, Sepkoski 2002 and Underwood 2006
Sister taxa: Echinorhiniformes, Hexanchida, Hexanchiformes, Pristiophoriformes, Protospinaciformes, Squatiniformes
Subtaxa: Centrophoridae Centropterus Dalatiidae Dalatioidea Eoscymnidae Etmopteridae Fredipristis Oxynotidae Paraechinorhinus Scymnorhinidae Somniosidae Squalidae Squalogaleus
Ecology: nektonic carnivore