The Echinoid Directory

Contributed by Andrew Smith, September 2011

Superorder Microstomata Smith, 1984, p. 171

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.