Full reference: R. T. Jackson. 1912. Phylogeny of the Echini, with a revision of Palaeozoic species. Memoirs of the Boston Society of Natural History 7:1-491
Parent taxon: Perischoechinoidea according to A. Boczarowski 2001
See also Jackson 1912, Kier 1966 and Sepkoski 2002
Sister taxa: Bothriocidaroida, Eognathostomata, Lanternarius, Lepidocentridae
Subtaxa: Aptilechinus Cavanechinus Devonocidaris Echinocyctitidae Echinocystitidae Ledidocidaris Lepidesthidae Tornquistellus
Ecology: slow-moving low-level epifaunal detritivore
Distribution:
• Permian of United States (1: Kansas collection)
• Carboniferous of United States (1: Iowa)
• Devonian of Germany (1), Poland (3), the United Kingdom (1)
• Silurian of the United Kingdom (3)
Total: 10 collections each including a single occurrence