Hi-res online download not available. Delivery in 24 hours.
Title: archosaur
Caption: Archosaurs are the reptilian ancestors of the dinosaurs, crocodiles, flying pterosaurs, and birds. They evolved around 225 million years ago, at the end of the Permian Period.
Category: Animals • nature • Reptiles & Amphibians • Geology & Fossils
Credit: Album / Science Source / Laurie O'Keefe
Image size: 4500 × 2526 px | 32.5 MB
Print size: 38.1 × 21.4 cm | 1771.7 × 994.5 in (300 dpi)