Echinoidea taxon details
original description
Tanaka, K. 1984. Some Cretaceous Echinoids from Japan. Bulletin of the Geological Survey of Japan 35, 189-202. page(s): 196-198; text-figs. 6a-c, pl. 3: figs 1a-e, 2a-c, 3a-b [details]
basis of record
Kroh, A. 2010. Index of Living and Fossil Echinoids 1971-2008. Annalen des Naturhistorischen Museums in Wien, Serie A 112, 195-470., available online at http://verlag.nhm-wien.ac.at/pdfs/112A_195470_Kroh.pdf page(s): 360 [details]
From editor or global species database
Fossil range Lower Cenomanian [details]
Stratigraphy Mikasa Formation, Middle Yezo Group [details]
Type locality Ohashi bridge, Ikushumbetsu River, Mikasa City, Central Hokkaida, Japan [details]
Type material HT: NSM-PA5392; PT: NSM-PA5393; GSJ F6144A, B [details]
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