Painting, nasal bones of the proteosaurus [ichthyosaur] by [William Clift] Plate 16 showing a transverse section through the nasal bones of an ichthyosaur, collected by Mary Anning at Lyme Regis [Dorset, England]. The work is inscribed with publication and plate details. Not signed. Royal Society stamp verso. Subject: Palaeontology Published in Philosophical Transactions as part of paper titled 'On the mode of formation of the canal for containing the spinal marrow, and on the form of the fins (if they deserve that name) of the Proteosaurus' by Everard Home. Read to the Royal Society on 4 May 1820. [1820]