Theropod dinosaur footprint found at Glen Rose, Texas, USA, dating from the Late Jurassic. Theropods were bipedal dinosaurs that were initially carnivorous, but later evolved different feeding adaptations. They evolved during the Late Triassic, existing from 231 million years ago, with most going extinct 65 million years ago. The Glen Rose fossil tracks were discovered by Roland T. Bird in 1938. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Van Ravenswaay, Detlev |
Bildgröße: | 4961 px × 4036 px |
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