original description
Cooke, C. W. 1954. Pliocene Echinoids from Okinawa. Geological Survey Professional Papers 264, 45-53.
page(s): 49; pl. 12: figs. 7-10 [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): 125 [details] Available for editors
From editor or global species database
Distribution Okinawa, Japan [details]
Fossil Range Pliocene [details]
Stratigraphy Naha Limestone is lower part of Ryukyu Limestone [details]
From editor or global species database