Neocoleoidea

Neocoleoidea Temporal range: Lower Devonian–Recent PreЄ Є O S D C P T J K Pg N
The Common Octopus, Octopus vulgaris.
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	Coleoidea
cohort:	Neocoleoidea Haas, 1997
Orders
See text

Neocoleoidea is a large group of marine cephalopods. This cohort contains two extant groups: Decapodiformes (squid, cuttlefish, and relatives) and Octopodiformes (octopuses and the vampire squid). Species within this group exist in all major habitats in the ocean, in both the southern and northern polar regions, and from intertidal zones to great depths.^[1] Whilst conventionally held to be monophyletic, the only morphological character for the group is the presence of suckers: although the presence of these features in the belemnites suggests that they do not support the Neocoleoidea, and hence that the group may be paraphyletic.^[2]

Taxonomy

• Superorder Decapodiformes
  • Order †Boletzkyida
  • Order Spirulida: Ram's Horn Squid
  • Order Sepiida: cuttlefish
  • Order Sepiolida: bobtail squid
  • Order Teuthida: squid
• Superorder Octopodiformes
  • Family †Trachyteuthididae (incertae sedis)
  • Order Vampyromorphida: Vampire Squid
  • Order Octopoda: octopus

References

1. ^ "Coleoidea". Tolweb.org. 2008-04-21. http://tolweb.org/coleoidea/19400. Retrieved 2010-07-30. 
2. ^ Fuchs, D.; Von Boletzky, S.; Tischlinger, H. (2010). "New evidence of functional suckers in belemnoid coleoids (Cephalopoda) weakens support for the 'Neocoleoidea' concept". Journal of Molluscan Studies 76: 404. doi:10.1093/mollus/eyq032.  edit

• Taxonomy Netherlands