Stenopodidea

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Stenopodidea
Temporal range: Late Devonian–Recent
Stenopus hispidus (high res).jpg
Stenopus hispidus
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Subphylum:
Crustacea
Class:
Malacostraca
Order:
Decapoda
Suborder:
Pleocyemata
Infraorder:
Stenopodidea

Claus, 1872
Families

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The Stenopodidea is a small group of decapod crustaceans. Often confused with shrimp or prawns, they are neither, but belong in a group closer to the reptant decapods, such as lobsters and crabs. They may be easily recognised by their third pereiopod (walking leg), which is greatly enlarged.[1] In the lobsters and crabs, it is the first pereiopod that is much bigger than the others. There are 71 extant species currently recognised, divided into 12 genera.[1] Three fossil species are also recognised, each belonging to a separate genus.[2][3] The earliest fossil assigned to the Stenopodidea is Devonostenopus pennsylvaniensis from the Devonian.[3] Until D. pennsylvaniensis was discovered, the oldest known member of the group was Jilinicaris chinensis from the Late Cretaceous.[4]

References

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