Editing Decapodiformes (section)

{{Short description|Superorder of Cephalopoda}}
{{Distinguish|Decapoda}}
{{Automatic taxobox
| fossil_range = {{Fossil range | Early Devonian | Recent | refs = <ref>see [[Boletzkyida]], [[Belemnite]]</ref>}}
| image = squidu.jpg
| image_caption = [[Plankton]]ic [[cranch squid]] [[paralarva]], Antarctica
| taxon = Decapodiformes
| authority = [[William Elford Leach|Leach]], 1817<ref name=tolweb/>
| subdivision_ranks = Orders
| subdivision = See text
| synonyms = * Decembrachiata <small>Winckworth, 1932</small>
}}

'''Decapodiformes''' is a [[superorder]] of [[Cephalopoda]] comprising all cephalopod species with ten [[Cephalopod limb|limbs]], specifically eight short arms and two long tentacles. It is hypothesized that the ancestral [[coleoid]] had five identical pairs of limbs, and that one branch of descendants evolved a modified arm pair IV to become the Decapodiformes, while another branch of descendants evolved and then eventually lost its arm pair II, becoming the [[Octopodiformes]].