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The Great Cretaceous Ocean. Drawn by J. Carter Beard.
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.
