Fossil teeth are among the most common fossils found due to their hard structure and the frequency they are lost during growth, feeding and fighting.
Pterosaurs were flying reptiles that lived approximately 228 to 66 million years ago from the Late Triassic through to the end of the Cretaceous period. They have been a heavily studied by palaeontologists due to their diversity and adaptability to fill various ecological niches. Some Pterosaurs evolved to feed on fish, others insects, some foraged for fruit, other hunted small land vertebrates, a couple of species even evolved to filter feed whilst flying over the surface of water.
Their fossils have been discovered all over the world, and have been exceptionally interesting and important in understanding the evolution of flight as they were the first vertebrates to achieve powered flight, pre-dating birds and bats by millions of years. Pterosaurs were related to dinosaurs and modern birds. They ranged in size from small bird-sized species with wingspans of less than a meter to giants of up to 12m like Quetzalcoatlus.
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