Illustration of Mammoth and Pteranodon 1820. An unrecorded, possibly unique print by 'E.S - F.G.S' (Fellow of Geological Society) in mezzotint style with contemporary hand colouring and ink inscription. The inscription, after Shakespeare, ends 'art thou but, The mammoth of my dreams'. The fact that the dream is populated by two of the earliest prehistoric 'monsters' to be discovered - the mammoth and pterodactyl, hints to an early date before the discovery of Megalosaurus in 1824. The naming of Pterodactylus antiquus as Ornithocephalus longirostris is after Cuvier 1819. The mammoth is shown with the assumed downward pointing tusks of the earliest reconstructions.