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Concept
Ornithocheiridae
Summary
Ornithocheiridae (or ornithocheirids, meaning "bird hands") is a group of pterosaurs within the suborder Pterodactyloidea. These pterosaurs were among the last to possess teeth. Members that belong to this group lived from the Early to Late Cretaceous periods (Valanginian to Turonian stages), around 140 to 90 million years ago.
Ornithocheirids are generally infamous for having an enormously controversial and very confusing taxonomy. Although agreements that these animals were related, and therefore similar to istiodactylids and pteranodontians, there is still no virtual consensus over the exact content and interrelationships of this group. Ornithocheirids were the most successful pterosaurs during their reign, they were also the largest pterosaurs before the appearance of the azhdarchids such as Quetzalcoatlus. Ornithocheirids were excellent fish hunters, they used various flight techniques to catch their prey, and they are also capable of flying great distances without flapping constantly. The later existence of the crested pteranodontids made paleontologists think that ornithocheirids were their potential ancestors. This is due to their very similar aspects such as the different flying techniques, the long distance flights, and most of all their diet, which consists mainly on fish.
The family Ornithocheiridae is without a doubt, one of the most well-known pterosaur groups, this is mostly due to their very controversial and convoluted taxonomic history. Most of the ornithocheirid fossil record consists of isolated teeth, as well as fragmentary bones, reaching hundreds or even thousands of remains in some localities. The first uncovered ornithocheirid remains were described in 1861 by British paleontologist Sir Richard Owen; he assigned the fossil remains to a new species of Pterodactylus: P. simus. In 1869, British paleontologist Harry Govier Seeley erected the new generic name Ornithocheirus (from Ancient Greek meaning "bird hand"), and assigned P. simus as its type species, therefore creating Ornithocheirus simus.
Official source
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