Squaliformes
From Conservapedia
| Squaliformes | |
|---|---|
| Scientific classification | |
| Kingdom Information | |
| Domain | Eukaryota |
| Kingdom | Animalia |
| Subkingdom | Biliteria |
| Branch | Deuterostomia |
| Phylum Information | |
| Phylum | Chordata |
| Sub-phylum | Vertebrata |
| Infraphylum | Gnathostomata |
| Class Information | |
| Class | Chondrichthyes |
| Sub-class | Elasmobranchii |
| Order Information | |
| Superorder | Selachimorpha |
| Order | Squaliformes |
| Family Information | |
| Families | Echinorhinidae Squalidae Oxynotidae Centrophoridae Etmopteridae Somniosidae Dalatiidae |
| Population statistics | |
Squaliformes is an order of sharks representing 7 families and 113 species of shark, with the spiny dogfish (Squalus acanthias) possibly the most abundant fish of any kind in the world's oceans. They are characterized by a lack of an anal fin, and range in size from 7.5 inches (Dwarf lanternshark, Etmopterus perryi) to 21 feet (Greenland shark, Somniosus microcephalus).
