Fig. 1From: Bernhard Peyer and his discoveries of Triassic vertebrates in SwitzerlandPortraits of Bernhard Peyer (top row, left), Karl Hescheler (top row, right), Ferdinand Schalch (bottom row, left), and Hans Bluntschli (bottom row right). Portrait of Bernhard Peyer from author's collection; all other images sourced from WikipediaBack to article page