Pterodaustro Skull Replica measures 12.5 in. Pterodaustro Skull Replica is museum quality polyurethane cast. Made in USA. Pterodaustro guinazui is the scientific name. Our precise skull can be used as a teaching tool, museum skull exhibit, home decor skull, or office decor skull.

Pterodaustro guinazui is a genus of Cretaceous pterodactyloid pterosaur from South America, which lived 105 million years ago.

Pterodaustro guinazui has a very elongated skull, up to 29 centimeters long. The portion in front of the eye sockets comprises 85 percent of skull length. The long snout and lower jaws curve strongly upwards; the tangent at the point of the snout is perpendicular to that of the jaw joint.

Pterodaustro guinazui has about a thousand bristle-like modified teeth in its lower jaws that might have been used to strain crustaceans, plankton, algae, and other small creatures from the water. These teeth stand for the most part not in separate alveoli but in two long grooves parallel to the edges of the jaw. They have a length of three centimetres and are oval in cross section, with a width of just 0.2 to 0.3 millimeters. Teeth are Unique bristle dentition which filtered small organisms form all types of water.

At first it was suspected these structures were not true teeth at all, but later research established they were built like normal teeth, including enamel, dentine and a pulp. The upper jaws also carried teeth, but these were very small with a flat conical base and a spatula-formed crown. These teeth also do not have separate tooth sockets but were apparently held by ligaments in a special tooth pad, that was also covered with small ossicles, or bone plates.

The back of the Pterodaustro guinazui skull was also rather elongated and in a low position. Pterodaustro guinazui had an adult wingspan of approximately 8.20 ft. Its hind limbs are rather robust and its feet large. Its tail is uniquely elongated for a pterodactyloid, containing 22 caudal vertebrae.

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Additional information

Weight 5 lbs
Dimensions 12.5 in
Pterodaustro Facts

Kingdom: Animalia
Phylum: Chordata
Order: †Pterosauria
Suborder: †Pterodactyloidea
Family: †Ctenochasmatidae
Genus: †Pterodaustro
Species: †P. guinazui
Binomial name: †Pterodaustro guinazui
Conservation Status: Extinct