Plesioteuthididae (incertae sedis)MyopsidaOegopsida
Squid are cephalopods of the order Teuthida. They are the sister group to the octopods. Squid are carnivores, but they are also hunted as prey. The largest squid, the giant squid and colossal squid, are eaten by sperm whales and sleeper sharks.
There are about 300 species of squid.