Three partial skeletons of a large pterosaur have been found in the latest Cretaceous nonmarine rock of West Texas. This flying reptile had thin, elongate, perhaps toothless jaws and a long neck similar to Pterodaustro and Pterodactylus. With an estimated wingspan of 15.5 meters, it is undoutbtedly the largest flying creature presently known.
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Douglas A. Lawson (1975) studied this question.
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