Page:Popular Science Monthly Volume 53.djvu/224



 Mossaurs; 1, Platecarpus coryphœus (Cope); 2, Tylosaurus Proriger (Cope); 6, Mosasauris Horridus (Williston); all restored by Williston. 3, Marine turtle: Protostega gigas (Cope), restored by Case. 4, Bulldog fish: Portheus Molossus (Cope). 5, Pterosaur: Pteranodon, or Ornithostoma ingens (Marsh), restored by Williston. 7, Plesiosaur: Plotycotylus latipinnis, as restored by Dames.