Traits taxon details
original description
Regnéll, G. 1956. Silurian Echinoids from Gotland. Arkiv för Mineralogi och Geologi 2, 155-178. page(s): 160-163; figs. 1-2, pl. 1: fig. 4 [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): 5 [details] Available for editors ![PDF available PDF available](https://www.marinespecies.org/aphia/images/pdf_lock.png)
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