Retroplumidae


Retroplumidae is a family of heterotrematan crabs, placed in their own superfamily, Retroplumoidea.

Classification

Eight genera are recognised, of which all but two are only known from fossils:
Ten species in two genera survive in the deep sea of the Indo-Pacific region:
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.