original description
Lambert, J. 1936a. Échinides du Sénonien supérieur et de l'Eocène. Pp. 205-207 in Besairie, H. Recherches géologiques á Madagascar. Première Suite. La géologie du Nord-Ouest. Mémoires de l'Académie Malgache 21, 205-207.
page(s): 207; pl. 24: figs. 10-11 [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): 52 [details] Available for editors
From editor or global species database
Distribution Madagascar, off East Africa [details]
Fossil Range Lutetian, Middle Eocene [details]
Taxonomic remark Lambert referred it to Conoclypeus Gray (nom. nud.) [details]