Diagnosis
provided by World Register of Marine Species
Ambulacrum III deeply sunken, forming a conspicuous and narrow frontal groove running from the apex down to the peristome. Adjoining interambulacra 2 and 3 forming sharp keels. Periproct supramarginal.
Saucède, T., Dudicourt, J. C. & Courville, P. 2012. Description of two new fossil echinoids (Echinodermata: Echinoidea) from the Early Hauterivian (Early Cretaceous) of the Paris Basin (France). Zootaxa 3512, 75-88.
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