Infraorder Achelata Scholtz and Richter 1995 (decapod)

Malacostraca - Decapoda

Parent taxon: Decapoda according to G. C. B. Poore and S. Ahyong 2004

Sister taxa: Acanthinopus, Alcmonacaris, Anaglyptus, Anomura, Archeosolenocera, Archithelphusa, Aspidogaster, Astacidea, Axiidea, Blaculla, Blepharipoda, Brachyura, Brachyuri, Buergerocaris, Calapa, Cambarus, Carcinocarcinus, Carcinoplacidae, Carpilodes, Charassocarcinus, Chiiengphoherus, Corellicarcinus, Cretachlorodus, Cyclodorippoida, Dalletastacus, Dendrobranchiata, Doratiopus, Erymastacus, Gampsurus, Gebia, Gebiidea, Geryon, Glabropilumus, Halice, Hecia, Hefriga, Hemiplax, Heterochelida, Heterocrypta, Hippidea, Homelys, Imocaris, Ixoides, Kierionopsis, Klytia, Leiothorax, Lissopsis, Maioidea, Martinezicancer, Mascarananda, Mecochiria, Meyerella, Microcorystes, Mitrax, Neopilumnoplax, Nephropsidae, Noetlingia, Oedisoma, Olinaecaris, Oxythyreus, Palaeohomarus, Palaeopolycheles, Palaxius, Palinura, Parafavreina, Parapinnixa, Paratymolus, Parvocaris, Pinnacaris, Pleocyemata, Polyonyx, Prepaeduma, Protonecrocarcinus, Semiranina, Syphax, Tealliocaris, Tetrachelus, Thalassinidea, Thaumastoplax, Torynomma, Trachycarcinus, Triasiglyphea, Trichopaltarion, Varuna

Subtaxa: Palinuroidea

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Ecology: carnivore

Distribution:

• Quaternary of Australia (1 collection), Fiji (1)

• Pliocene of Fiji (2)

• Miocene of Japan (1)

• Eocene of Italy (3), the United Kingdom (2), United States (2: California, Oregon)

• Paleocene of Antarctica (1), United States (6: Alabama, Texas)

• Paleogene of Italy (1), Mexico (1)

• Cretaceous of Antarctica (2), Australia (1), Canada (7: Alberta, British Columbia), France (1), Germany (1), Italy (1), Japan (1), Lebanon (4), Mexico (5), Spain (1), the United Kingdom (2), United States (22: Kansas, Louisiana, Mississippi, New Jersey, New Mexico, New York, Oklahoma, South Dakota, Tennessee, Texas), Uzbekistan (7)

• Jurassic of Germany (3), Italy (1), the United Kingdom (2)

• Triassic of China (1), Italy (5), Slovenia (1)

Total: 89 collections including 137 occurrences

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