Ophioglossum sp.2

Citations total:
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original Valanginian Hauterivian USSR(Primorsk Kray) Bityutskaya,P.I. et al. The significance of the palynological method for the subdivision of the Cretaceous deposits of the North-Western part of the Pacific biogeographic area. (In: Palynology, Method and Stratigraphy) 1973