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Carantonicidaris Vadet, Nicolleau & Cottard, 2013, p. 70

Diagnostic Features	Interambulacral tubercles smooth and perforate, the miliary granules are small and densely packed. Primary spines are usually cylindrical without a distal crown-like expansion; shaft with large and relatively less dense thorns, which is the principal difference from the genus Santonicidaris (from Vadet et al. 2013, p. 70)
Distribution	Upper Cretaceous (Campanian), France
Name gender	feminine
Type	Cidaris subvesiculosa d'Orbigny, 1850, p. 274 (unfigured) by original designation.
Species Included	C. subvesiculosa (d'Orbigny, 1850); Campanian, France C. campaniensis (Lambert, 1909); Campanian, France
Classification and/or Status	Cidaroidea; Cidaroida; Cidaridae; Stereocidarinae nomen dubium
Remarks	There is considerable uncertainty about the identity of the d'Orbigny's species subvesiculosa. The original diagnosis of d'Orbigny (1850) simply referred to "Espece voisine du vesiculosa mais s'en distinguant par deux au lieu de trois rangess de tubercles sur la ligne ambulacraiare. Royan, Fecamp, Saintes".  There is no reference to any specimens and no illustrations.  As pointed out by Lambert (1909) this likely confounded several different species.  The first author to fix the species name was Desor (1850, p. 13) who cites V86 in the Neuchatel reference collection, and illustrates a slender, finely thorned cylindrical spine from the Chalk of Rouen. Vadet et al. (2013) distinguished this genus from other stereocidarines on the basis that it had coarsely thorned spines.  Yet they included a mixture of isolated spines in the type species, ranging from coarsely thorned spines [previously illustrated by Cotteau (1883) as Cidaris pseudopistillum], finely thorned fusiform spines [illustrated by Cotteau 1862 pl. 1057, fig. 12 as Cidaris subvesiculosa] and delicately thorned long, cylidnrical spines.  Two different test morphologies are also confouned, one with wide interradial zones and well developed neural grooves, the other with narrow interradial zones and no neural grooves. Given the range of material included it is hard to see how this genus can be justified. Cotteau (G.), 1883 - Echinides jurassiques, crétacés et éocènes du Sud-Ouest de la France. Annales de la Société des Sciences naturelles. Académie des Belles-Lettres, Sciences et Arts de la Rochelle, p. 1-209. Lambert, J. 1909. Révision de quelques Cidaridae de la Craie. Bulletin de la Société des Sciences historiques et naturalles de l’Yonne, 62, 113-175, 1 pl. Orbigny, A. D. d’. 1850. Prodome de paléontologie stratigraphique universelle des animaux mollusques et rayonnés, 2, 428 pp. V. Masson, Paris. Vadet, A., Nicolleau, P. & Cottard, N. 2013. Les Cidaris de la craie des Provinces Anglo-parisienne & Sarthe-Aquitaine. Annales de la Societe d\'Histoire Naturelle du Boulonnais 12 (1), 1-80.