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Decapodiformes
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Wikipedia

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 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:

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Last updated on Tuesday February 26, 2008 at 17:42:08 PST (GMT -0800)
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