Eocarcinoidea
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Eocarcinoidea is a superfamily of fossil decapod crustaceans. Formerly thought to be the earliest true crabs, they are now thought to be the oldest members of the Anomura. Two species are included, ea
Squat lobster
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Squat lobsters are dorsoventrally flattened crustaceans with long tails held curled beneath the cephalothorax. They are found in the two superfamilies Galatheoidea and Chirostyloidea, which form part
Squat lobsters can form dense aggregations.
Porcelain crabs, like Neopetrolisthes maculatus, are closely related to squat lobsters.
Dorsal (left) and ventral (right) views of the holotype of Kiwa puravida (Kiwaidae); two pereiopods have broken off on the animal's left side.