Retroplumidae

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title: "Retroplumidae" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["crabs", "extant-maastrichtian-first-appearances", "decapod-families"] description: "Family of crabs" topic_path: "general/crabs" source: "https://en.wikipedia.org/wiki/Retroplumidae" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Family of crabs ::

| fossil_range = | image = Retroplumidae - Retropluma craverii.JPG | image_caption = Fossil of Retropluma craverii | display_parents = 2 | parent_authority = Gill, 1894 | taxon = Retroplumidae | authority = Gill, 1894 | synonyms = Ptenoplacidae Alcock, 1899 | subdivision_ranks = Genera | subdivision =

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

Classification

Eight genera are recognised, of which all but two are only known from fossils:

• Archaeopus † Rathbun, 1908
• Bathypluma de Saint Laurent, 1989
• Costacopluma † Collins & Morris, 1975
• Cristipluma † Bishop, 1983a
• Loerentheya † Lőrenthey, in Lőrenthey & Beurlen, 1929
• Loerenthopluma † Beschin, Busulini, De Angeli & Tessier, 1996
• Retrocypoda † Vía, 1959
• Retropluma Gill, 1894

Ten species in two genera survive in the deep sea of the Indo-Pacific region:

• Bathypluma chuni (Doflein, 1904)
• Bathypluma forficula De Saint Laurent, 1989
• Bathypluma spinifer De Saint Laurent, 1989
• Retropluma denticulata Rathbun, 1932
• Retropluma quadrata De Saint Laurent, 1989
• Retropluma notopus (Alcock & Anderson, 1894)
• Retropluma planiforma Kensley, 1969
• Retropluma plumosa Tesch, 1918
• Retropluma serenei De Saint Laurent, 1989
• Retropluma solomonensis McLay, 2006

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.

References

References

1. {{ITIS
2. (2009). "A classification of living and fossil genera of decapod crustaceans". [[Raffles Bulletin of Zoology]].
3. Peter K. L. Ng. (2008). "Systema Brachyurorum: Part I. An annotated checklist of extant Brachyuran crabs of the world". [[Raffles Bulletin of Zoology]].
4. (2001). "New Cretaceous and Tertiary decapod crustaceans from western North America". Bulletin of the Mizunami Fossil Museum.

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