Palicoidea is a superfamily of crab

Crab

True crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting "tail" , or where the reduced abdomen is entirely hidden under the thorax...

s, comprising the two families Crossotonotidae and Palicidae. Together, they contain 13 genera, including two genera in the Palicidae known only from fossil

Fossil

Fossils are the preserved remains or traces of animals , plants, and other organisms from the remote past...

s. The two families were previously treated as two subfamilies in a Palicidae of wider circumscription

Circumscription (taxonomy)

In taxonomy, circumscription is the definition of the limits of a taxonomic group of organisms. One goal of taxonomy is to achieve a stable circumscription for every taxonomic group. Achieving stability can be simple or difficult....

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Family Crossotonotidae Moosa & Serène, 1981

• Crossotonotus A. Milne-Edwards, 1873
• Pleurophricus A. Milne-Edwards, 1873

Family Palicidae Bouvier, 1898

• Eopalicus † Beschin, Busulini, De Angeli & Tessier, 1996
• Exopalicus Castro, 2000
• Miropalicus Castro, 2000
• Neopalicus Moosa & Serène, 1981
• Palicoides Moosa & Serène, 1981
• Paliculus Castro, 2000
• Palicus
  Palicus
  Palicus is a genus of stilt crabs in the family Palicidae.-Species:Twenty-two species are included in the genus :*Palicus acutifrons *Palicus affinis Palicus is a genus of stilt crabs in the family Palicidae.-Species:Twenty-two species are included in the genus :*Palicus acutifrons (A....
  
  Philippi, 1838
• Parapalicus Moosa & Serène, 1981
• Pseudopalicus Moosa & Serène, 1981
• Rectopalicus Castro, 2000
• Spinipalicus † Beschin & De Angeli, 2003