On an exposure of the Ordovician superstes Mudstones at Colmonell, Girvan District, Strathclyde Tripp, R. P. ; Williams, A. ; Paul, C. R. C. Abstract Publication: Scottish Journal of Geology Pub Date: March 1981 DOI: 10.1144/sjg17010021 Bibcode: 1981ScJG...17...21T