Benton, M.J., Cook, E. & Turner, P. 2002. Permian and Triassic Red Beds and the Penarth Group of Great Britain. Geological Conservation Review Series, No. 24, JNCC, Peterborough, ISBN 1 86 107 493 X. The original source material for these web pages has been made available by the JNCC under the Open Government Licence 3.0. Full details in the JNCC Open Data Policy
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Wright, V.P., Marriott, S.B. and Vanstone, S.D. (1991) A 'reg' palaeosol from the Lower Triassic of south Devon: stratigraphy and palaeoclimatic implications. Geological Magazine, 128, 517–23.
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