Blue Lias
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The Blue Lias is a geological formation in southern, eastern and western England and parts of South Wales, part of the Lias Group. The Blue Lias consists of a sequence of limestone and shale layers, l
Lower Lias sequence exposed at Nash Point, Glamorgan, Wales
Blue Lias formation at Lyme Regis, Dorset
Lytes Cary, Somerset, built of Blue Lias with Ham stone dressings around the windows
The holotype of Plesiosaurus dolichodeirus, on display at the Natural History Museum in London
Charmouth Mudstone Formation
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The Charmouth Mudstone Formation is a geological formation in England, dating to the Early Jurassic. It forms part of the lower Lias Group. It is most prominently exposed at its type locality in cliff
Blue Lias
…orbital forcing (Milankovitch cycles). These limestone-mudstone alternations pass up into a clay member formerly known as the Lower Lias Clay now the Charmouth Mudstone. This lithology consists of monotonous mudstones weathering to clay at the surface. Sparse thin limestone and nodule bands are seen where the rocks are…
Cliffs of the Charmouth Mudstone Formation at Charmouth, Dorset
Vertebrate fauna of the Charmouth Mudstone Formation
Archaeonectrus
Attenborosaurus