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Radiometric Dating of Ignimbrite from Inner Mongolia Provides no Indication of a Post-Middle Jurassic Age for the Daohugou Beds[J]. GAO Ke-Qin1, * and REN Dong2 1 School of Earth and Space Sciences, Peking University, Beijing 100871 2 College of Life Science, Capital Normal University, Beijing 100037.Acta Geologica Sinica(English Edition). 2006(01)
[2]
Description and revison of some dragonflies (‘Anisozygoptera’) from the Lower Cretaceous of England (Odonata: Stenophlebiidae, Campterophlebiidae?, Epiophlebiidae, Euthemistidae)[J] . A. Nel,E.A. Jarzembowski.Cretaceous Research . 1996 (1)