Decapodiformes
| Decapodiformes Temporal range:
| |
|---|---|
| |
| Juvenile cephalopod from plankton, Antarctica | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| (unranked): | Neocoleoidea |
| Superorder: | Decapodiformes Leach, 1817[2] |
| Orders | |
| Synonyms | |
| |
Decapodiformes is a superorder of Cephalopoda comprising all cephalopod species with ten 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.
The Decapodiformes include:
- Order Spirulida: ram's horn squid
- Order Sepiida: cuttlefish, pygmy, bobtail and bottletail squid[3]
- Order Myopsida: coastal squid[4]
- Order Oegopsida: neritic squid[5]
References
- ^ see Boletzkyida, Belemnite
- ^ Young, R. E., Vecchione, M., Mangold, K. M. (2008). Decapodiformes Leach, 1817. Squids, cuttlefishes and their relatives. in The Tree of Life Web Project
- ^ Philippe Bouchet (2018). "Sepiida". World Register of Marine Species. Flanders Marine Institute. Retrieved 24 January 2019.
- ^ Philippe Bouchet (2018). "Myopsida". World Register of Marine Species. Flanders Marine Institute. Retrieved 22 February 2018.
- ^ Philippe Bouchet (2018). "Oegopsida". World Register of Marine Species. Flanders Marine Institute. Retrieved 22 February 2018.
Further reading
- Young, Richard E.; Vecchione, Michael; Donovan, Desmond T. (1998). "The evolution of coleoid cephalopods and their present biodiversity and ecology". South African Journal of Marine Science. 20 (1): 393–420. doi:10.2989/025776198784126287. abstract
External links
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