Calappoidea

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]

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