Often described as a sketch of this watercolour is in fact one of several by geologist and engineer Thomas Sopwith of William Buckland in Snowdonia on 14–16 October 1841, examining evidence for glaciation.

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Just arrived in time for is this great new memoir on the history of from . A wonderfully wide-ranging set of 29 papers including, of course, one on Duria Antiquior, drawn for who pops up in 4 papers in this volume.

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This lithograph of a tooth is an important image in the from William Smith's book "Strata Identified by Organized Fossils..." of 1816. Learn more from blog post at: https://t.co/njko7PsrU7

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