Calappoidea

Calappoidea Temporal range: Aptian–Recent PreꞒ Ꞓ O S D C P T J K Pg N
Calappa japonica seen from above
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Malacostraca
Order:	Decapoda
Suborder:	Pleocyemata
Infraorder:	Brachyura
Subsection:	Heterotremata
Superfamily:	Calappoidea H. Milne-Edwards, 1837
Families
Calappidae Matutidae

Calappoidea is a superfamily of crabs comprising the two families Calappidae and Matutidae. ^[1] The earliest fossils attributable to the Calappoidea date from the Aptian. ^[2]

References

1. 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. Archived from the original (PDF) on 2011-06-06.
2. Andreas Brösing (2008). "A reconstruction of an evolutionary scenario for the Brachyura (Decapoda) in the context of the Cretaceous–Tertiary boundary" (PDF). Crustaceana . 81 (3): 271–287. CiteSeerX   10.1.1.652.1701 . doi:10.1163/156854008783564091.