Taxon tree

Infraorder Anomura
Infraorder Brachyura
- Section Eubrachyura
  - Subsection Heterotremata
  - Subsection Thoracotremata
    - Superfamily Cryptochiroidea
    - Superfamily Grapsoidea
      - Family Gecarcinidae
      - Family Glyptograpsidae
      - Family Grapsidae
      - Family Leptograpsodidae
      - Family Percnidae
        
        Genus Percnon
      - Family Plagusiidae
      - Family Sesarmidae
      - Family Varunidae
      - Family Xenograpsidae
    - Superfamily Ocypodoidea
    - Superfamily Pinnotheroidea
- Section Podotremata

Percnidae

Family, Števcic, 2005

Percnon planissimum, Ling-Kuang Tseng