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Temporal range: Maastrichtian–Recent
Retroplumidae - Retropluma craverii.JPG
Fossil of Retropluma craverii
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Malacostraca
Order: Decapoda
Infraorder: Brachyura
Section: Eubrachyura
Subsection: Heterotremata
Superfamily: Retroplumoidea
Gill, 1894
Family: Retroplumidae
Gill, 1894 [1]

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 ConiacianMaastrichtian rocks in California and Archaeopus ezoensis from Turonian–Maastrichtian rocks from Japan.[4]


  1. ^ "Retroplumidae Gill, 1894". Integrated Taxonomic Information System. Retrieved November 10, 2011. 
  2. ^ Sammy De Grave; N. Dean Pentcheff; Shane T. Ahyong; et al. (2009). "A classification of living and fossil genera of decapod crustaceans" (PDF). Raffles Bulletin of Zoology. Suppl. 21: 1–109. 
  3. ^ Peter K. L. Ng, Danièle Guinot & Peter J. F. Davie (2008). "Systema Brachyurorum: Part I. An annotated checklist of extant Brachyuran crabs of the world" (PDF). Raffles Bulletin of Zoology. 17: 1–286. 
  4. ^ Carrie E. Schweitzer & Rodney M. Feldmann (2001). "New Cretaceous and Tertiary decapod crustaceans from western North America" (PDF). Bulletin of the Mizunami Fossil Museum. 28: 173–210.