The Echinoid Directory

Coptodiscus Cotteau & Gauthier, 1895, p. 76

Diagnostic Features
  • All five genital plates perforated by a gonopore.
  • Aboral plating highly ornamented with sutural pits.
  • Single primary interambulacral tubercle centrally placed on each aboral interambulacral plate; multiple tubercles on adoral plates.
  • Ambulacra as in Coenholectypus.
  • Periproct relatively small and opening midway between the peristome and posterior margin.
Late Cretaceous (Cenomanian, Maastrichtian); Spain and the Middle East
Name gender masculine
Coptodiscus nomiae Cotteau & Gauthier, 1895, p. 77, by monotypy.
Species Included
  • Coptodiscus nomiae Cotteau & Gauthier, 1895; Campanian-Maastrichtian, Iran, Arabian Peninsula
  • C. mengaudi Lambert, 1919; Late Cenomanian, Santander, Spain
Classification and/or Status

Holectypoida, Holectypidae, Coenholectypinae

Presumed monophyletic

An easily recognisable genus on account of its highly distinctive ornamentation. Temnholectypus was suggested as a synonym, having pits scattered over its aboral surface according to Lambert & Thiery (1911, p. 280). However, this feature was not noted in the original description or figures given for the type species of Temnholectypus. Consequently Temnholectypus is here treated as a distinct genus.

Cotteau, G. H. & Gauthier, V. 1895. Mission scientifique en Perse par J. de Morgan; études géologiques des échinides fossiles. Volume 3, 1-107. E. Leroux, Paris.