1An order of crustaceans that includes shrimps, crabs, and lobsters. They have five pairs of walking legs and are typically marine.
- Potentially recent major gene order rearrangements have been documented within the crustacean order Decapoda, the gastropod superfamily Helicoidea, the parasitic flatworm genus Schistosoma, and the tick family Ixodidae.
- Other aspects of the morphology of Palaeopemphix that separate it from the Decapoda include the bivalved nature of the carapace and the strong development of the lateromarginal carina, or doublure.
- The Penaeidae fall within the order Decapoda (class Malacostraca), which contains most commercially important crustacean species.
Modern Latin (plural), from deca- 'ten' + Greek pous, pod- 'foot'.
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