Paper, 'Supplementary observations on the structure of the belemnite and belemnoteuthis' by Gideon Algernon Mantell Subject: Palaeontology Published in Philosophical Transactions as 'Supplementary observations on the structure of the belemnite and belemnoteuthis'. Written by Mantell in Chester Square, Pimlico [London]. Received by the Royal Society on 5 November 1849. Read 14 February 1850. Abstract published in Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London [later Proceedings of the Royal Society of London], Volume 5, 1851. October 1849