Morphogenetic trend of Lepidocyclina and its application in time stratigraphy

Abstract

The morphogenetic trend of Lepidocyclina in Miocene sediments from Sarawak, East Malaysia, has been studied. A correlation has been established between the degree of curvature of Lepidocyclina and the planktonic foraminiferal zonation in the area. The results prove that this evolutionary trend of Lepidocyclina is a practical tool for chronostratigraphy.