Science Fair Project Encyclopedia
Decapodiformes
Sepiida
Sepiolida
Spirulida
Teuthida
Decapodiformes is a superorder of Cephalopoda, which includes all species with ten limbs; the name derives from the Latin meaning ten feet. The ten limbs are divided into 8 arms and 2 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 superorder of Decapodiformes includes:
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details