Echinoidea - Cidaroida - Psychocidaridae
Alternative spelling: Psychocidarinae
Full reference: H. Ikeda. 1936. Preliminary note on a new family of the Cidaroidea. Annotationes Zoologicae Japonenses 15:486-489
Parent taxon: Cidaridea according to A. Kroh and A. B. Smith 2010
See also Fell 1966, Gravesen 1993, Ikeda 1936 and Smith 2009
Sister taxa: Cidaridae, Ctenocidaridae, Paurocidaris, Plegiocidaris
Subtaxa: Merocidaris Roseicidaridae Roseicidaris Tylocidaris
Ecology: slow-moving low-level epifaunal grazer-omnivore
Distribution:
• Miocene of Italy (7 collections), San Marino (1)
• Eocene of Cuba (2)
• Paleocene of Denmark (3), the Netherlands (2), United States (6: Alabama, New Jersey)
• Cretaceous to Paleogene of the Netherlands (1)
• Cretaceous of Belgium (1), the Czech Republic (5), France (2), Germany (1), the Netherlands (1), Spain (9), Sweden (1), the United Kingdom (5)
• Jurassic of France (1), Switzerland (3)
Total: 51 collections including 62 occurrences