Mean atmospheric O2
Geologic Time Scale
Dorygnathus at altitude
A flock of pterosaurs of the genus Dorygnathus soars high over a rugged, Early Jurassic European landscape of coniferous trees of the genus Wollemi approximately 180 million years ago.
Dorygnathus had a wing span of about 3 feet and its large, curved fangs suggests that it dined primarily on fish. Like all pterosaurs, Dorygnathus was a flying reptile, not a dinosaur (the flying descendents of the dinosaurs live on today as birds).
Copyright © Walter B. Myers. All rights reserved.
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