Pterodaustro belongs to short-range flying dinosaurs – Pterozaurians. The most interesting particular element of this creature was the curved beak upwards, which had the effect of filtering and impressing uniquely by its special construction.
This prehistoric animal had small posterior limbs, ending with paws covered with thick and scaly skin, long fingers and sharp and curved claws. He probably used to stand in the shallow waters and filter the very small aquatic creatures with his beak.
He populated the areas near the shores of waters stretched from the territory where Argentina was today, and his favorite food was made up of small fish and crustaceans.
The Pterodaustro was a warm-blooded animal, as were all flying dinosaurs – had the body temperature constant, and during the very cold months it was protected against the feather cold. The weight of an adult Pterodaustro was estimated at 2kg, and the wingspan at 1.2m.
The skeleton of this dinosaur was very easy, being made of hollow bones inside. The heart and lungs provided the necessary blood and oxygen for all parts of the body so that the animal had enough energy to get up in flight.
When lifting their wings, they tend to hold them slightly folded to greatly diminish air resistance, and when they descend their hind legs to get a larger patch surface.
As with all the flying dinosaur species, also at Pterodaustro the wings were developed from the forelegs, the patch extended through the elongated, fourth toe and the other three were free, covered with thick and scaly skin and strong, curved and sharp claws, with grip and hooking. The patch was very strong and stretched to the hind limbs without covering their ankles and paws.
This species is a bit like the flamingo bird today, so some researchers have called it Pterodaustro flamingo. The neck was long and flexible, made up of many joints and vertebrae, which easily supported the head and the big beak of this dinosaur.
The species known as Pterodaustro Guinazui was named and described by paleontologist Jose Bonaparte in 1970 based on the analysis of the fossil remains discovered in Argentina in the province of San Luis in 1963. They date back to the Mezozoic era from the Lower Cretaceous period , 125-100 million years ago.
The lower part of the beak was bordered by about 500 sharp pointed buttresses like symmetrical teeth, though the animal suddenly caught and was able to retain small aquatic animals from the sea water. The upper part of the beak was provided with a lot of small and sharp teeth that helped crawl the foreskin.