Octopodiformes is a superorder of the subclass Coleoidea, comprising the octopuses and the vampire squid.
All living members of Octopodiformes have eight arms, either lacking the two tentacles of squid (as is the case in octopuses) or modifying the tentacles into thin filaments (as in vampire squid).
Octopodiformes is often considered the crown group of octopuses and vampire squids, including all descendants of their common ancestor.
[2] Pohlsepia, originally described as earliest octopod is considered as dubious for this group in later study.
[1][4] Syllipsimopodi, a squid-like cephalopod from the Mississippian-age Bear Gulch Lagerstätte of Montana, was originally described as the oldest unambiguous vampyropod.