See text Oegopsida is one of the two orders of squid in the superorder Decapodiformes, in the class Cephalopoda.

[5] The Oegopsida differ from the coastal Myopsida, characterised by the genus Loligo, which have corneal coverings over the eyes and tentacle pockets, but lack hooks, have no suckers on the buccal supports, and a single oviduct.

The earliest fossils of Oegopsida are jaw fragments from the Santonian or early Campanian of the Yezo Group in Hokkaido, Japan.

One of these fossils was described as the genus Yezoteuthis, which has been estimated to rival the modern giant squid in size.

[1][6] The following taxonomic classification was found by Fernández-Álvarez et al., 2021:[5] The following phylogeny was found by Fernández-Álvarez et al., 2021:[5] Cranchiidae Ommastrephidae Thysanoteuthidae Gonatidae Histioteuthidae Onychoteuthidae Architeuthidae Neoteuthidae Cycloteuthidae Brachioteuthidae Enoploteuthidae Ancistrocheiridae Lampadioteuthidae Lycoteuthidae Pyroteuthidae Octopoteuthidae Lepidoteuthidae Chiroteuthidae Mastigoteuthidae Magnapinnidae Joubiniteuthidae Pholidoteuthidae This squid-related article is a stub.