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Title: Pilumnoidea  
Author: World Heritage Encyclopedia
Language: English
Subject: Eubrachyura, Heterotremata, Crab, Pilumnoidea, Brachyura
Publisher: World Heritage Encyclopedia


Temporal range: Maastrichtian–Recent
Pilumnus hirtellus
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Malacostraca
Order: Decapoda
Infraorder: Brachyura
Section: Eubrachyura
Subsection: Heterotremata
Superfamily: Pilumnoidea
Samouelle, 1819

Pilumnoidea is a superfamily of crabs,[1][2] whose members were previously included in the Xanthoidea.[3] The three families are unified by the free articulation of all the segments of the male crab's abdomen and by the form of the gonopods.[2] The earliest fossils assigned to this group are of Eocene age.[4]


Pilumnidae is by far the largest of the three families, with 73 of the 78 genera:[2]

Pilumnidae Samouelle, 1819
Galenidae Alcock, 1898
Tanaocheleidae Ng & P. F. Clark, 2000


  1. ^ 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" ( 
  2. ^ a b c Sammy De Grave, N. Dean Pentcheff, Shane T. Ahyong et al. (2009). "A classification of living and fossil genera of decapod crustaceans" ( 
  3. ^ Joel W. Martin & George E. Davis (2001). An Updated Classification of the Recent Crustacea ( 
  4. ^ Carrie E. Schweitzer (2003). "Progress on the fossil Xanthoidea MacLeay, 1838 (Decapoda, Brachyura)".  
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