The Echinoid Directory

Contributed by Andrew Smith, August 2011

Prophyllacanthus Cutress, 1980, p. 120

Diagnostic Features Test with conjugate pores and moderately high tubercles, some of the latter finely crenulate around the entire platform or along its upper edge. Tadioles slender to moderately robust, cylindrical; having numerous more or less regular, longitudinal series of small, sharp, finely serrated nodules or nodular ridges and showing evidence of hair coat. Septa of shaft arising in bundles in some radioles (from Cutress 1980, p. 121)
Distribution Upper Cretaceous (Maastrichtian) to Eocene, Caribbean
Name gender masculine
Type Leiocidaris leoni Lambert & Sanchez Roig, in Sanchez Roig, 1926, p. 33, by original definition.
Species Included
  • P. leoni Lambert & Sanchez Roig, 1926; Maastrichtian, Cuba, Jamaica 
  • P. eocenicus Cutress, 1980; Eocene, Cuba
Classification and/or Status Cidaroida, Cidaridae, Cidarinae

?Subjective junior synonym of Prionocidaris
Remarks Various spines and test fragments were asigned to this species.  It was differentiated from Phyllacanthus in having slightly crenulated tubercles.  In spine morphology and test features it is closer to Cretaceous Prionocidaris.

Cutress, B. 1980. Cretaceous and Tertiary Cidaroida (Echinodermata, Echinoidea) of the Carribean area. Bulletin of American Paleontology 77 (309), 1-221.