Malacostraca - Decapoda

Parent taxon: Portunoidea according to S. Casadio et al. 2005

Sister taxa: Carcineretidae, Carcinidae, Catoptridae, Lithophylacidae, Longusorbiidae, Macropipidae, Pirimelidae, Psammocarcinidae, Thiidae

Subtaxa: Archaeogeryon, Chaceon

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Ecology: epifaunal carnivore