original description
Socin, C. 1946. Fossile eocenico con iscrizione geroglifica rinvenuto in Eliopoli. Atti della Società Toscana di Scienze Naturali, Memorie 53, 163-171.
page(s): 163-171; figs. 1a-d [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): 79 [details] Available for editors
From editor or global species database
Distribution North Africa [details]
Fossil Range Priabonian/ Lutetian, Middle Eocene [details]
Taxonomic remark Originally proposed as an infrasubspecific taxon (variety), but is to be treated as a subspecies according to the Code (ICZN 1999 Art. 45.6.4.). [details]