original description
Israelsky, M. C. 1924. Notes on Some Echinoids from the San Rafael and Tuxpam Beds of the Tampico Region, Mexico. Proceedings of the California Academy of Sciences 4 , 137-145.
page(s): 141 [details]
basis of record
Kier, P. M. & Lawson, M. H. 1978. Index of living and fossil echinoids 1924-1970. Smithsonian Contributions to Paleobiology 34, 1-182., available online at https://doi.org/10.5479/si.00810266.34.1
page(s): 104 [details] Available for editors
From editor or global species database
Distribution Mexico [details]
Fossil Range Late Oligocene [details]