The Echinoid Directory

Contributed by Andrew Smith, August 2011

Endeodiadema de Loriol, 1890, p. 90

Diagnostic Features
  • Test rounded.
  • Apical disc unknown.
  • Ambulacral zones straight; pore-pairs uniserial from apex to peristome and not sunken.  No primary tubercles, just secondaries.
  • Interambulacral plates with well developed primary tubercle; tubercles with areol; perforate and finely crenulate; surrounded by numerous miliaries.
  • Peristome small, flush with feeble buccal notches.
Distribution Middle Jurassic (Callovian), Portugal
Name gender neuter
Type Endeodiadema lepidum de Loriol, 1890, p. 90 by monotypy.
Species Included Only the type species.
Classification and/or Status Acroechinoidea;

incertae sedis
Remarks de Loriol, P. 1890. Description de la faune jurassique du Portugal. Emranchement des echinodermes. 1. Echinides reguliers ou endocycliques. Commission des travaux geologique du Portugal, Lisbonne. 109 pp., 18 pls.