Dr Von Jones is a palaeontologist, claiming to be the most famous one in the world. He is searching for the missing link between man and vegetable (which isn't Dan Quayle as Simon suggests) and so is constantly digging holes in search of fossils.
Simon meets Von Jones in a hole in the forest near Fleur de Lys, and is told to look out for fossils. When Simon finds one in the mountains, he shows it to the Dr but directs him to a different place in the mountains in order to dig up some milrith. When Von Jones digs a hole there, he finds no fossils and breaks his shovel. He angrily curses at Simon, and vainly calls out for International Rescue.