The Echinoid Directory

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Lepidechinoides ithacensis Olsson, 1912.  Portage Beds, Hamilton Formation, Middle Devonian,  Ithaca, New York State, USA. Test internal mould oral view and cast. From Cooper, G. A. 1931. Lepidechinoides Olsson, a genus of Devonian echinoids. Journal of Paleontology 5, 127-144.

Specimen 27.5 mm wide.