The Echinoid Directory

Contributed by Andreas Kroh, August 2013

Pygolampas Saucède, Dudicourt & Courville, 2012, p. 81

Diagnostic Features	Test of small to medium size, elongate, moderately inflated, with pointed posterior margin, flat adoral surface slightly sunken towards peristome. Apical system monobasal with three genital pores, pore absent in left anterior genital plate. Petals well developed, open, broad, equal, with broad poriferous zones. Pores conjugate. Peristome, anterior, longer than wide, pentagonal; sunken. Periproct inframarginal, ovate and transverse. Bourrelets weakly developed, forming slightly convex walls to the peristome entrance. Phyllodes broadened adorally, double pored, with outer series and a few pores in a short inner series. Buccal pores absent. Tubercles slightly larger adorally, no naked granular zone adorally in interambulacrum 5.
Distribution	Lower Cretaceous (Hauterivian); France.
Name gender	feminine
Type	Pygolampas edita Saucède, Dudicourt & Courville, 2012, p. 82, by monotypy.
Species Included	Only the type species.
Classification and/or Status	Irregularia; Neognathostomata; 'catopygids'.
Remarks	Pygolampas is very similar in external morphology to some Miocene pliolampadids (e.g. Pliolampas, Studeria), but differs from these by the presence of double pores in the phyllodes and the absence of buccal pores. It seems closest to 'catopygids', but differs from all of those by its monobasal apical disc with missing genital pore 3. Saucède, T., Dudicourt, J. C. & Courville, P. 2012. Description of two new fossil echinoids (Echinodermata: Echinoidea) from the Early Hauterivian (Early Cretaceous) of the Paris Basin (France). Zootaxa 3512, 75-88.