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.