original description
Ravn, J. P. J. (1927). De irregulære Echinider i Danmarks Kridtaflejringer: Det Kongelige Danske Videnskabernes Selskabs Skrifter, Naturvidenskabelig og Mathematisk Afdeling., 8. <em>Række,(11).</em> 4: 1-48.
page(s): 23-25; fig. 7, pl. 2: figs. 9-12 [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): 11 [details] Available for editors 
From editor or global species database
Distribution Denmark [details]
Fossil Range Danian, Paleocene [details]