John Allen Howe

“ The upper Keuper, Rhaetic or Avicula contorta zone in Germany is mainly sandy with dark grey shales and marls; it is seldom more than 25 metres thick. The sandstones are used for building purposes at Bayreuth, Culmbach and Bamberg. In Swabia and the Wesergebirge are several “bone-beds,” thicker than those in the middle Keuper, which contain a rich assemblage of fossil remains of fish, reptiles and the mammalian teeth of Microlestes antiquus and Triglyptus Fraasi. The name Rhaetic is derived from the Rhaetic Alps where the beds are well developed ”

“ Fishes include Ceratodus, Hybodus and Lepidotus. Labyrinthodonts represented by the footprints of Cheirotherium and the bones of Labyrinthodon, Mastodonsaurus and Capitosaurus. Among the reptiles are Hyperodapedon, Palaeosaurus, Zanclodon, Nothosaurus and Belodon. ”