Abstract
Durlston Bay in Dorset, southern UK, type section of the Tithonian-Berriasian Purbeck Limestone Group, has been intensely studied with regard to its marginal marine palaeoenvironments, rich fossil biota and evidence for earliest Cretaceous climate change. Here we appraise aspects of these topics, incorporating new field observations. We offer changes in charcoal density as a further line of support for a mid-Berriasian moistening of the climate, but suggest that the primary driver of palaeoenvironmental and biotic changes observed through the Purbeck succession was varying input of marine water, with climate change having an overlying and often more subtle influence.
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