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.
A pterosaur is a winged dinosaur. They are the first of the vertebrate dino-critters that achieved powered flight.  Wikipedia has additional information, and a link is provi â¦ ded.   EDIT: NO pterosaurs are NOT dinosaurs.   There are dinosaurs alive to day with wings. We call them Birds.  Wings evovled in the group of theropod dinosaurs called Maniraptora.  The big difference between pterosaurs and flying dinosaurs (birds) is that the wing in pterosaurs is made of a fleshy membrane whereas the wings in flying dinosaurs are made of feathers.inosaurs don't have wings!    Edit: dinosaurs don't have wings! That statement is wrong.    There are around 10,000 species of dinosaur alive today with win â¦ gs, we call them birds.