Here’s another colored-pencil-on-colored-paper drawing; this time it’s a reconstruction of a long-extinct animal. Seymouria sanjuanensis was a tetrapod that lived during the early Permian period, more than 270 million years ago, long before the dinosaurs, pterosaurs, plesiosaurs, and other newcomers had arrived on the scene. It was a stocky little lizard-like creature about two feet …