†order Bothriocidaroida von Zittel 1879 (sea urchin)
Full reference: K. A. von Zittel. 1879. Handbuch der Palaeontologie 1(1):1-765
Parent taxon: Perischoechinoidea according to P. M. Kier 1966
See also Sepkoski 2002
Sister taxa: Echinocystitoida, Eognathostomata, Lanternarius, Lepidocentridae
Subtaxa: Bothriocidaridae Neobothriocidaris Unibothriocidaris
Ecology: slow-moving low-level epifaunal detritivore
Distribution:
• Silurian of United States (1: Illinois collection)
• Ordovician of Estonia (8), Latvia (1), the Netherlands (1), Norway (1), the United Kingdom (1), United States (13: Illinois, Illinois, Iowa, Iowa, Minnesota, Oklahoma, illinois)
Total: 26 collections including 31 occurrences