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Retroplumidae Temporal range:
| |
---|---|
Fossil of Retropluma craverii | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Malacostraca |
Order: | Decapoda |
Suborder: | Pleocyemata |
Infraorder: | Brachyura |
Subsection: | Heterotremata |
Superfamily: | Retroplumoidea Gill, 1894 |
Family: | Retroplumidae Gill, 1894 [1] |
Synonyms | |
Ptenoplacidae Alcock, 1899 |
Retroplumidae is a family of heterotrematan crabs, placed in their own (monotypic) superfamily, Retroplumoidea.
Eight genera are recognised, of which all but two are only known from fossils:[2]
Ten species in two genera survive in the deep sea of the Indo-Pacific region:[3]
Fossil specimens ascribed to the Retroplumidae are known from the Late Cretaceous onwards, with Archaeopus antennatus in Coniacian–Maastrichtian rocks in California and Archaeopus ezoensis from Turonian–Maastrichtian rocks from Japan.[4]