Squaliformes

Etmopteridae - Etmopteridae is a family of sharks in the order Squaliformes, commonly known as lantern sharks.

Centrophoridae - The gulper sharks are a family of squaliform sharks.

Somniosidae - Somniosidae is a family of sharks in the order Squaliformes, commonly known as sleeper sharks.

Squalidae - Squalidae is the family of dogfish sharks.

Dalatiidae - Dalatiidae is a family of sharks in the order Squaliformes, commonly known as kitefin sharks .

Echinorhinidae - Echinorhinus is a genus of squaliform sharks, the only extant genus in the family Echinorhinidae.

Oxynotidae - Oxynotus is a genus of sharks in the order Squaliformes, commonly known as the rough sharks.