Parent taxon: Pleocyemata according to C.E. Schweitzer et al. 2023
See also Hegna et al. 2020, Schweitzer et al. 2010 and Wolfe et al. 2019
Sister taxa: Achelata, Astacidea, Axiidea, Caridea, Polychelida, Procaridea, Reptantia, Stenopodea, Stenopodidea
Subtaxa: Axianassidae Laomediidae Thalassinidae Upogebiidae
Ecology: infaunal detritivore
Distribution:
• Quaternary of Australia (1 collection)
• Pliocene of New Zealand (1), Spain (1)
• Miocene of Algeria (1), Hungary (5), Italy (1), Japan (16), Malaysia (8), Spain (1)
• Oligocene of United States (1: Washington)
• Eocene of Italy (1)
• Paleogene of Belgium (1)
• Paleocene of United States (1: Alabama)
• Cretaceous of France (1), Spain (1)
• Triassic of France (1)
Total: 42 collections including 57 occurrences