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The AAPG/Datapages Combined Publications Database

GCAGS Transactions

Abstract


Gulf Coast Association of Geological Societies Transactions
Vol. 41 (1991), Pages 348-352

Pollen and Spores from the Type Section of the Middle Eocene Stone City Formation, Burleson Co., Texas

John G. Jones (1), Judith A. Gennett (2)

ABSTRACT

The middle Claiborne Stone City Formation (middle Eocene) represents environments transitional between freshwater and marine. No substantial differences exist in the pollen and spore content from the bottom to the top of the formation. The most common pollen grain is the small chestnut-like tricolporate, Cupuliferoipollenites. Two other similar pollen types, Siltaria sp. and Araliaceoipollenites granulatus are also common. These taxa are typical of Claiborne sediments. Other taxa, notably Nuxpollenites, are found only in the Middle Eocene. The few changes that occur within the vertical sample sequence differentiate the lower clastics from the closely sampled "glauconite bed." Several taxa, such as Ailanthipites berryi, are found only within this upper bed. Other pollen types, such as Rhoipites latus, are found only in the shales.


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