Pteranodon
Pteranodon (; from Greek πτερόν ( pteron, "wing") and ἀνόδων (anodon, "toothless") is a genus of pterosaur that included some of the largest known flying reptiles, with wingspans over 8 meters (26 feet). They lived during the late Cretaceous geological period of North America in present-day Kansas, Alabama, Nebraska, Wyoming, and South Dakota. More fossil specimens of "Pteranodon" have been found than any other pterosaur, with about 1,200 specimens known to science, many of them well preserved with nearly complete skulls and articulated skeletons. It was an important part of the animal community in the Western Interior Seaway.
Carcharodontosaurus
"Carcharodontosaurus" were carnivores, with enormous jaws and long, serrated teeth up to eight inches long. A skull length of about 1.6 meters (5.2 ft) has been restored for "C. saharicus", and the skull of "C. iguidensis" is reported to have been about the same size. Currently, the largest-known theropod skull belongs to another huge carcharodontosaurid dinosaur, the closely related "Giganotosaurus" (with skull length estimates up to 1.95 m) (6.4 ft). Gregory S. Paul estimates "Carcharodontosaurus iguidensis" at and .