Echinoidea - Irregularia - Tithoniidae
Full reference: A. N. Solovjev. 1966. Morphology and evolution Collyritidae and Disasteridae and the Systematics of sea urchins of the order Spatangoida [in Russian]. Proceedings of the 12th USSR Palaeontological Society. Leningrad 45-46
Parent taxon: Atelostomata according to A. Kroh and A. B. Smith 2010
See also Barras 2007
Sister taxa: Acrolusiidae, Asternata, Aulacopygus, Collyritidae, Disasteridae, Holasteroida, Notidisaster, Orbigniana, Pycnasterides, Spatangoida, Sternata
Subtaxa: Tetraromania Tithonia
Type: Tithonia
Ecology: epifaunal grazer-deposit feeder
Distribution:
• Cretaceous of Antarctica (3 collections), Hungary (2)
• Jurassic of France (1), Poland (1)
Total: 7 collections each including a single occurrence