The Echinoid Directory

Corculum Pomel, 1883, p. 48

Diagnostic Features	Test ovate with flat base and domed upper surface; no anterior sulcus. Apical disc relatively large; with four gonopores. All ambulacra flush, with small circumflexed pore-pairs adapically. Plastron meridosternous. Peristome ovate and facing downwards; separated from anterior by a low rim. Periproct inframarginal. No enlarged primary tubercles aborally. No fascioles.
Distribution	Upper Cretaceous (Campanian); Europe.
Name gender	neuter
Type	Corculum typicus Pomel, n.s. [= Ananchytes corculum Goldfuss, 1826, p. 147], by original designation.
Species Included	Only the type species.
Classification and/or Status	Holasteroida, basal Meridosternata, ?Holasteridae Subjective junior synonym of ? Galeola
Remarks	According to Ernst (1971) this taxon is synonymous with Galeola papillosa. Galeola and Echinocorys differ in adoral interambulacral plating, which unfortunately is unknown from the original description. The material referred to under this name by Cotteau (see illustrations), is clearly a Galeola. Ernst, G. 1971. Biometrische Untersuchungen uber die Ontogenie und Phylogenie der Offaster/Galeola-Stammesreihe (Echinoidea) aus des nordwesteuropaischen Oberkreide. Neues Jahrbuch fur Geologie und Palaontologie Abhandlungen 139, 169-225. Pomel, A. 1883. Classification méthodique et genera des Échinides vivante et fossiles. Thèses présentées a la Faculté des Sciences de Paris pour obtenir le Grade de Docteur ès Sciences Naturelles, 503, 131 pp. Aldolphe Jourdan, Alger.