 The French naturalist and professor Jean Hermann of Strasbourg, France, drafted what Witton describes as the "oldest known, incontrovertible" pieces of paleoart in 1800.These sketches, based on the first known fossil skeleton of a pterosaur, depict Hermann's interpretation of the animal as a flying mammal with fur and large external ears.These ink drawings were relatively quick sketches accompanying his notes on the fossil and were likely never intended for publication, and their existence was only recently uncovered from correspondence between the artist and the French anatomist Baron Georges Cuvier.