Lower Cretaceous foraminifera from the Speeton clay of Yorkshire
One hundred and five species of foraminifera from the D, C and Lower B beds, representing the Berriasian, Valanginian, Hauterivian and lower Barremian stages of the Lower Cretaceous Speeton clays are described. The need for accurate localisation of samples resulted in a critical examination of the s...
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University of Hull
1966
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| Online Access: | http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.455603 |