Subphylum Crustacea Scientific name Pilumnoidea Rank Superfamily | Order Decapoda Infraorder Brachyura | |
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Lower classifications Pilumninae, Pilumnus reticulatus, Roseate hairy crab | ||
Pilumnoidea is a superfamily of crabs, whose members were previously included in the Xanthoidea. The three families are unified by the free articulation of all the segments of the male crab's abdomen and by the form of the gonopods. The earliest fossils assigned to this group are of Eocene age.
Classification
Pilumnidae is by far the largest of the three families, with 73 of the 78 genera:
References
Pilumnoidea Wikipedia(Text) CC BY-SA