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.
Elasmosaurus (meaning: thin-plated lizard) had plate like bones in its pelvic girdle and was a plesiosaur with an enormously long neck that lived in the belatedly Cretaceous period. Elasmosaurus was a reptile, but not a dinosaur. They are distinguished by having two holes in the rear upper fraction of their skulls and two holes behind the eyes, like all Diapsids. It was about 14 metres (46 feet) in span and weighed above 2,000 kg (2.2 tons), making it the longest ever plesiosaur species. It had a big body, a tiny head and four flippers for limbs. More than half of its length was its neck, which had more than 70 spines, more than any other animal.