Class - Elasmobranchii
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Parvphylum: Chondrichthyes
Class: Elasmobranchii
Name derivation: “plate gill”
- Order: Carcharhiniformes (ground sharks)
- Order: Heterodontiformes (bullhead sharks)
- Order: Hexanchiformes (frilled and cow sharks)
- Order: Lamniformes (mackerel sharks)
- Order: Myliobatiformes (stingrays and relatives)
- Order: Orectolobiformes (carpet sharks)
- Order: Pristiophoriformes (sawsharks)
- Order: Rajiformes (skates and relatives)
- Order: Rhinopristiformes (sawfishes, guitarsfishes, wedgefishes and relatives)
- Order: Squaliformes (dogfish sharks)
- Order: Squatiniformes (angel sharks)
- Order: Torpediniformes (electric rays)
Number of Families: 54
Number of Genus: 205
Number of known Species: 1,226
Earliest Fossil Record: Middle Devonian 383 mya
Habitat: Marine, Freshwater
Size Range: 20 cm to 18 m
Notes: Based on Catalogue of Life as of July 2024