original description
Nisiyama, S. 1950. Two New Species of the Toxasteridae from Japan. Short Papers of the Institute of Geology and Paleontology , Tohoku University (Sendai) 1, 42-47.
page(s): 42-44; figs. 1-3 [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): 96 [details] Available for editors
From editor or global species database
Distribution Japan [details]
Fossil Range Neocomian, Early Cretaceous [details]