Decapodiformes
From Infogalactic: the planetary knowledge core
| Decapodiformes | |
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| Juvenile cephalopod from plankton Antarctica |
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Scientific classification  |
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| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Cohort: | Neocoleoidea |
| Superorder: | Decapodiformes Leach, 1817[1] |
| Orders | |
| Synonyms | |
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Decapodiformes is a superorder of Cephalopoda, which includes all species with ten limbs; the name derives from the Greek word meaning ten feet. The ten limbs are divided into eight short arms and two long tentacles. It is presumed that an ancestral coleoid had five identical pairs of limbs, and that one branch evolved a modified arm pair IV and became the Decapodiformes species. Another branch evolved and then eventually lost its arm pair II, becoming the Octopodiformes.
The Decapodiformes include:
- ?Order †Boletzkyida
- Order Spirulida: ram's horn squid
- Order Sepiida: cuttlefish
- Order Sepiolida: pygmy, bobtail and bottletail squid
- Order Teuthida: squid
References
- ↑ Young, R. E., Vecchione, M., Mangold, K. M. (2008). Decapodiformes Leach, 1817. Squids, cuttlefishes and their relatives. in The Tree of Life Web Project
Further reading
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External links
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