Thomson, J. A. (1920). Appendix I, Neothyris obtusa sp. nov. In: Henderson, J., & Ongley, M., Geology of the Gisborne and Whatatutu Subdivisions. New Zealand Geological Survey Bulletin. 21: 81, plate V.
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Thomson, J. A.
1920
Appendix I, Neothyris obtusa sp. nov. In: Henderson, J., & Ongley, M., Geology of the Gisborne and Whatatutu Subdivisions