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Published online by Cambridge University Press: 01 May 2009
The Whetstones (Meule) of Bracquegnies, Belgium, are upon the same geological horizon (zone of Ammonites inflatus, Sow.) and are identical lithologically with the well-known Whetstones of Blackdown; like to the latter deposits they are characterized by the prevalence of Trigoniæ which are allied to, but are for the most part not strictly identical with the species of Devonshire.
1 Cornet and Briart, Description de la Meule de Bracquegnies, Mémoires Couronnes et Mem. des savant Etrangers, Acad. Royal de Belgique, t. xxxiv. 1868.