Subfamily Stylocidarinae Mortensen 1928 (pencil urchin)

Echinoidea - Cidaroida - Cidaridae

Parent taxon: Cidaridae according to S. Nisiyama 1966

Sister taxa: Centrocidaris, Cidarinae, Cidarini, Cidaris, Dorocidaris, Goniocidarinae, Hesperocidaris, Phyllacanthina, Prionocidaris, Rhabdocidarinae, Stereocidarinae, Triassicidaris

Subtaxa: Balanocidaris Firmacidaris

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

Distribution:

• Cretaceous of Algeria (1 collection), Egypt (1), France (1), Hungary (3), Spain (2)

• Jurassic to Cretaceous of Japan (1)

• Jurassic of Algeria (1), France (2), Germany (1), Japan (2), Portugal (3)

• Triassic of Greece (1), Italy (12)

Total: 31 collections including 33 occurrences

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