Carboniferous fossils protecting the coastline at Barton on Sea

David N Lewis (UK) and Stephen K Donovan (The Netherlands) Many people regard fossils, quite rightly, as rare and exotic objects. Yet how often do people come into contact with palaeontological remains without appreciating it? Probably the easiest example to cite is that of quarried stone, either appearing as facing stones or, in a less aesthetically pleasing setting, when ground down or crushed for concrete or road ballast. Often, quarried stone is utilised a large distance from its source. For example there are no exposures of Carboniferous Limestone in the Netherlands, yet this rock is common in Dutch towns and cities where it is found as facing and decorative stones, far from its origins in Belgium and elsewhere. Obviously such uses of rock are to be admired visually but not hammered; yet this is not necessarily always the case. In this article we introduce you to exotic blocks of Carboniferous Limestone which are so situated that they are actively worn down by the elements, exposing the treasures contained within. Fig. 1. Maps of southern Britain and Christchurch Bay (after Lewis et al. 2003). The cliffs of the famous fossil collecting area of Barton on Sea are part of the (often slumped) sea cliffs of Christchurch Bay in Hampshire and Dorset, extending, in the west, from Friars Cliff, near Christchurch, to Milford-on-Sea, near Lymington in the east (Fig.1). These are composed of Eocene clays and sandstones, overlain by Pleistocene plateau gravels (Fig. 2) and have been systematically eroded over long periods … Read More

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