Pterosaurs, or flying reptiles, are not, strictly speaking dinosaurs, although they were contermporaries, and doubtless lived in similar habitats.
These reptiles were apparently not just gliders, but were capable of active flight as well. In 1975, the largest pterosaur ever found came to light in Big Bend National Park, in Texas (of course!)
. This monster had an estimated wingspan of about 35 feet, as large as that of some jet fighter planes. Other pterosaurs, perhaps juveniles, were only a few cenitmeters tall,
but appeared to be capable of flight. These reptiles typically had an impressive mouthful of teeth.
to see a Pterosaur in action (avi format 1.2meg),