Retroplumoidea 

Retroplumidae
Fossil range: Coniacian-Recent
86.0–0 Ma
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Infraorder: Brachyura
Section: Eubrachyura
Subsection: Heterotremata
Superfamily: Retroplumoidea
Gill, 1894
Family: Retroplumidae
Gill, 1894
Genera

Retropluma
(and see text)

Retroplumidae is a family of heterotrematan crustaceans. These crabs are very distinctive and placed in the monotypic superfamily Retroplumoidea.

They are living fossils, with only a single genus, Retropluma, surviving in the deep sea of the Indopacific region. Two more genera are known only from fossils:


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