powerful head

with sickle-shaped claws on tridactyl hands that it probably used to grasp and manipulate vegetation

which contributed to its characteristic high-necked stance

while the rear ones were smaller and paddle-like

where a species' body size decreases due to resource limitations on an island or isolated area

Quetzalcoatlus northropi Aquilolamna powerful headQuetzalcoatlus northropi is one of the most impressive creatures to have ever inhabited the Earth, known for being one of the largest pterosaurs that existed during the Late Cretaceous period, approximately 70 million years ago. Its name refers to Quetzalcoatl, a Mesoamerican deity, and pays homage to aviation pioneer John Knudsen Northrop. This pterosaur was a flying reptile that was notable for its exceptionally large wingspan, estimated to have