Quantitative analysis of Elasmobranch assemblages from two successive Ypresian (early Eocene) facies at Marke, western Belgium

Temporal patterns in biodiversity are affected largely by changes in environmental conditions. Sea level fluctuations rank amongst the major factors that affect marine biodiversity or community structure on a local or regional scale, as confirmed by numerous case studies relating lithology with fossil assemblages in order to reconstruct palaeoenvironmental conditions. However up to now, few studies quantified selachian and batoid faunas (Elasmobranchii) in such a context. In the present study, we compare elasmobranch teeth from two successive facies of Ypresian (Early Eocene) age, as exposed a... Mehr ...