CLASS Cyclostomata Hagfishes and Lampreys

ORDER Myxiniformes hagfishes

HAGFISHES

Family Myxinidae

ORDER Petromyzontiformes Berg, 1940 – lampreys

LAMPREYS

Family Petromyzontidae

POUCHED LAMPREYS

Family Geotriidae

MORDACID LAMPREYS

Family Mordaciidae

CLASS Chondrichthyes Sharks and Rays

SUPERORDER Galeomorphii

Bullhead Sharks, Carpetsharks, Mackerel Sharks and relatives and Ground Sharks

ORDER Heterodontiformes Berg, 1940 – bullhead sharks

BULLHEAD SHARKS

Family Heterodontidae

ORDER Orectolobiformes Applegate, 1972 – carpetsharks

Whale Sharks, Collared Carpetsharks, Blindsharks, Wobbegongs, Bamboosharks, Zebra Sharks and Nurse Sharks

ORDER Lamniformes Berg, 1958 – mackerel sharks and relatives

Sand Tigers, Goblin Sharks, Crocodile Sharks, Mackerel Sharks, Megamouth Sharks, Basking Sharks and Thresher Sharks

SAND TIGERS

Family Odontaspididae

GOBLIN SHARKS

Family Mitsukurinidae

CROCODILE SHARKS

Family Pseudocarchariidae

MACKEREL SHARKS

Family Lamnidae

MEGAMOUTH SHARKS

Family Megachasmidae

BASKING SHARKS

Family Cetorhinidae

THRESHER SHARKS

Family Alopiidae

ORDER Carcharhiniformes Compagno, 1973 – ground sharks

Catsharks, Finback Catsharks, False Catsharks, Barbeled Houndsharks, Houndsharks, Weasel Sharks, Requiem Sharks and Hammerhead Sharks

CATSHARKS

Family Pentanchidae

CATSHARKS

Family Scyliorhinidae

FINBACK CATSHARKS

Family Proscylliidae

FALSE CATSHARKS

Family Pseudotriakidae

HOUNDSHARKS

Family Leptochariidae

HOUNDSHARKS

Family Triakidae

WEASEL SHARKS

Family Hemigaleidae

REQUIEM SHARKS

Family Carcharhinidae

HAMMERHEADS

Family Sphyrnidae

SUPERORDER Squalimorpha

Cowsharks, Frilled Sharks, Kitefin Sharks, Lanternsharks, Sleeper Sharks and Roughsharks

ORDER Hexanchiformes de Buen, 1926 – cowsharks and frilled sharks

ORDER Squaliformes Goodrich, 1909 – dogfish sharks and relatives

Kitfin Sharks, Lanternsharks, Sleeper Sharks and Roughsharks

KITEFIN SHARKS

Family Dalatiidae

LANTERNSHARKS

Family Etmopteridae

SLEEPER SHARKS

Family Somniosidae

ROUGHSHARKS

Family Oxynotidae

GULPER SHARKS

Family Centrophoridae

DOGFISHES

Family Squalidae

BRAMBLESHARKS

Family Echinorhinidae

ORDER Pristiophoriformes Berg, 1958 – sawsharks

ORDER Squatiniformes de Buen, 1926 – angelsharks

ANGELSHARKS

Family Squatinidae

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