ibclogo XVI International Botanical Congess


Abstract Number: 4314
Session = 15.7.6


CRETACEOUS ANGIOSPERMS FROM KAZAKHSTAN


S. I. Frumin* & E. M. Friis^,*Hebrew University of Jerusalem, Israel. ^Swedish Museum of Naural History, Stockholm, Sweden


Cretaceous sediments with plant fossils are widespread in Kazakhstan. Plant fossils are mainly leaves and palynomorphs. Vegetational changes during the Cretaceous inferred from the fossils reflects climatic fluctuation between humid and more arid conditions with a humid phase by the mid-Cretaceous. The Sarbay flora is a new mesoflora including well preserved flowers, fruits, seeds, and twigs. It is the first substantial mesoflora containing angiosperm reproductive organs in the Cretaceous of Asia and provides insights into the Asian vegetation during the more humid mid-Cretaceous phase. Angiosperms are the dominate component of the flora with about 70 different species including several magnoliid taxa related to modern Magnoliaceae, Lauraceae, and Illiciaceae, and many taxa showing affinity to modern eudicots.


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