The Philadelphia International Airport is the 9th busiest airport in the world. The Philadelphia Marketplace Food, Shops and services at the airport have a mind-boggling number of eateries, retail stores that sell everything that one can think of, and a number of newsstands.
(See a gallery of plesiosaur and pliosaur pictures.) Plesiosaurs (Greek for almost lizards) were large, long-necked, four-flippered marine reptiles that paddled their way through the oceans, lakes, rivers and swamps of the Jurassic and Cretaceous periods.
Liopleurodon was an aquatic reptile predator with four paddle-like fins and an enormous pair of jaws. Liopleurodon was an average sized plesiosaur. A great beast dubbed Predator X has recently been discovered. This mysterious creature may have been three times the size of Liopleurodon. This finding highlights that pliosaurs were definitely the kings of the oceans during much of the reign of the dinosaurs.