Echinoidea - Cidaroida - Polycidaridae
Synonyms: Anisocidaridae Vadet 1999, Nenoticidaridae Vadet 1988
Full reference: A. Vadet. 1988. Révision des principaux “Cidaris” de l’Oxfordien et du Kimméridgien inférieur Européens. Mémoires de la Société Académique du Boulonnais 4:1-148
Parent taxon: Cidaroida according to A. B. Smith 2015
See also Kroh and Smith 2010, Smith 2009 and Vadet et al. 2002
Sister taxa: Cidaridea, Delocidaris, Diplocidaridae, Fellius, Heterocidaridae, Hirudocidaris, Histocidaridea, Leurocidaris, Menocidaris, Mesodiadema, Mikrocidari, Minicidaris, Miocidaridae, Oedematocidaris, Palmerius, Paracidaridae, Prophyllacanthus, Rhabdocidaridae, Serpianotiaridae, Triadotiaridae
Subtaxa: Nudicidaris Paracidaris Polycidaris Romanocidaris
Type: Polycidaris
Ecology: slow-moving low-level epifaunal grazer-omnivore
Distribution:
• Cretaceous of United States (1: Oregon collection)
• Jurassic of Ethiopia (1), France (11), Germany (4), Luxembourg (2), Poland (4), Portugal (1), Switzerland (37), Ukraine (1), the United Kingdom (50)
• Triassic of Italy (1)
Total: 113 collections including 143 occurrences