Traits name details
original description
Dixon, F. (1850). The Geology and Fossils of the Tertiary and Cretaceous Formations of Sussex. Longman, Brown, Green and Longmans, London, xvi + 422 + xvi pp., 4-5 pls., text-figs., available online at https://www.biodiversitylibrary.org/page/14816813 page(s): 180-181; pl. 6 fig. 19; pl. 7 fig. 42 [details]
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