The Echinoid Directory

Contributed by Andrew Smith, August 2011

Micropsis Cotteau, in Cotteau & Leymerie 1856, p. 326

Diagnostic Features	Test rounded and inflated with rounded ambitus Apical disc narrow; plating (in type species) unknown Ambulacral compound plates with four elements; pore-pairs in arcs throughout. Single primary tubercle on adapical and adoral compound plates but two subequal tubercles on ambital plates. Interambulacral plates wide and short with central primary tubercle and slightly smaller secondary tubercles on adradial and interradial sides; remainder of plate with granules All tubercles imperforate and crenulate. Peristome small
Distribution	The type species comes from the late Cretaceous (Senonian) of southern France
Type	Micropsis desori Cotteau, in Cotteau & Leymerie, 1856, p. 326 by monotypy.
Species Included	Lambert & Thiery (1911, p. 220) include a number of other species.
Classification and/or Status	Stirodonta, Incertae sedis
Remarks	Cotteau, G. & Leymerie * 1856. Catalogue des echinides fossiles des Pyrennees. Bulletin de la Societe geologique de France Serie 2, 13, 319-355. Cotteau, G. 1862-1867. Paleontologie francaise. Terrain Cretace, Tome 7. Echinides reguliers. G. Masson, Paris.