Family Psychocidaridae Ikeda 1936 (pencil urchin)

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, Goniocidarinae, Paurocidaris, Plegiocidaris

Subtaxa: Merocidaris Roseicidaridae Roseicidaris Tylocidaris

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Ecology: slow-moving low-level epifaunal grazer-omnivore

Distribution:

• Miocene of Italy (3 collections)

• Eocene of Cuba (2)

• Paleocene of Denmark (4), 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: 47 collections including 58 occurrences

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