Author: Jeletzky, J.A.
Title: Thorsteinssonoceras: A New Craspeditid Ammonite from the Valanginian of Ellesmere Island, Arctic Archipelago
Description: Department of Mines and Technical Surveys 1965 16, 6 b/w plates. . PB. Card wrappers. Vg. Small stamp of William James Kennedy (1943- ), Professor of Earth Sciences, University of Oxford to front cover.. Bulletin Geological Survey of Canada 120..

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