Contributed by Andrew Smith, September 2011
|Diagnosis||All irregular echinoids that have a small peristome and have either lost their lantern as adults or have a modified lantern that does not protrude through the opening.|
|Range||Lower Jurassic (Pliensbachian) to Recent|
|Species Included||The clades Atelostomata and Neognathostomata and their common stem group, which includes Loriolella|
Introduced in Smith (1984) and defined in phylocode terms by Saucede et al. (2007)
Smith, A. B. 1984. Echinoid palaeobiology. George Allen & Unwin, London.
Saucede, T., Mooi, R. & David, B. 2007. Phylogeny and origin of Jurassic irregular echinoids (Echinodermata: Echinoidea). Geological Magazine 144, 333-359.