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.
Like its close cousin, Plesiosaurus, the marine reptile Pliosaurus is what paleontologists refer to as a wastebasket taxon: any plesiosaurs or pliosaurs that can't be conclusively identified tend to be assigned as species or specimens of one or the other of these two genera.