Porcelain crab

Porcelain crabs Temporal range: Tithonian–Recent PreꞒ Ꞓ O S D C P T J K Pg N
Southeastern Pacific species of Petrolisthes, Allopetrolisthes and Liopetrolisthes
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Malacostraca
Order:	Decapoda
Suborder:	Pleocyemata
Infraorder:	Anomura
Superfamily:	Galatheoidea
Family:	Porcellanidae Haworth, 1825
Genera
See text

Porcelain crabs are decapod crustaceans in the widespread family Porcellanidae, which superficially resemble true crabs. They have flattened bodies as an adaptation for living in rock crevices. They are delicate, readily losing limbs when attacked, and use their large claws for maintaining territories. They first appeared in the Tithonian age of the Late Jurassic epoch, 145–152 million years ago.