Traits name details
original description
Phillips, J. (1829). Illustrations of the Geology of Yorkshire; or a description of the strata and organic remains of the Yorkshire Coast. Part 1. <em>Printed for the author, York.</em> 1-192., available online at https://www.biodiversitylibrary.org/page/22966827 page(s): 188, pl. 4, fig. 16 [details]
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