Pteranodon (/tɪˈrænədɒn/; 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 7 meters (23 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.[1] Pteranodon was a pterosaur, meaning that it is not a dinosaur. By definition, all dinosaurs belong to one of the two groups within Dinosauria, i.e. Saurischia or Ornithischia. As such, this excludes pterosaurs. Nonetheless, Pteranodon is frequently featured in dinosaur media and are strongly associated with dinosaurs by the general public.[2] While not dinosaurs, pterosaurs such as Pteranodon form a clade closely related to dinosaurs as both fall
On a yacht south of the Equator waters, we meet a ruthless tycoon named Thornton Armitage and his family whose daughter's wed to the arrogant Ned Hallet along the trip is a paleontologist Steve who's teaching Thornton's son Billy about dinosaurs. During the voyage, Steve becomes attracted to Thornton's daughter Elaine and they both start to fall in love but all are disrupted by a large typhoon that threatens the yacht and begins to sink evacuating to a nearby submarine the group then finds themselves in a prehistoric land filled with dinosaurs, prehistoric beasts, and exploding volcanoes. Steve decides since he is the dinosaur expert to lead the group through survival but Hallet who is a trigger-happy hunter is jealous of Steve upon leaving the group he hunts down a baby Triceratops and meets his demise at the hand of an angry mother. After encountering many reptilian creatures of this lost world the group must make contact with the outside world before the prehistoric wonder around them is lost to the deadly forces of nature.
