The trilobites from the Upper Cambrian to Lower Ordovician Survey Peak, Outram and Skoki formations at Wilcox Pass, Alberta, comprehensively described in this r

This volume presents the proceedings of Symposium I "Stratigraphy" of the 30th International Geological Congress at Beijing. The proceedings aim to present a vi

This paper provides new data on the succession of acritarch assemblages, and some information on that of chitinozoans, in warm, mainly shallow, water, marine ca

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