Quetzalcoatlus was a lightly built pterosaur with a long neck and a long toothless jaw. It was most accomplished in the air but could walk on all fours quite efficiently too.
Quetzalcoatlus predominantly inhabited inland areas, living around lakes and rivers on semi-arid plains.
Quetzalcoatlus had the longest jaws of any non-marine animal, estimated at over 2.5m (8ft), although their tweezer-like beaks lacked teeth.
A closely related species of pterosaur, Hatzegopteryx, was named in 2002 by Eric Buffetaut, Dan Grigorescu and Zoltan Csiki. The bones were found in the Hatzeg basin of Transylvania. Hatzegopteryx and Quetzalcoatlus are thought to have been the largest pterosaurs ever.
Height: 5m (16.4ft)
Length: 11m (36.08ft)
Weight: 249.93kg (551lbs)
Top speed: 170kph (105.6mph)
Vision: Quetzalcoatlus probably would have had excellent binocular vision like other creatures adapted to life in the air.
Skin: Quetzalcoatlus might have had hair-like structures, or pycnofibres, over their bodies, which were probably for insulation rather than display.
Brain: Pterosaurs in general had sizeable brains, making them reasonably intelligent. A life in the air is easier with a large brain, which gives an animal a heightened sense of balance, sight and muscle control.
Prey: Quetzalcoatlus was most likely a terrestrial stalker, an animal that hunted small prey like juvenile dinosaurs and lizards. Some of them may have been omnivorous, but the larger species were probably fairly strict carnivores. They would have filled the same niche as the storks and ground hornbills of today.
Bite: Quetzalcoatlus had long, toothless, tweezer-like beaks which originally hinted at a diet of fish, skim-feeding on lakes and pools. However, today, we think that they were actually terrestrial stalkers, hunting on the ground!
Nest: The soft, leathery, porous eggs of Quetzalcoatlus could absorb nutrients from the ground, like those of a turtle.