Just finished this illustration today based on the Coffee Hollow A-Male Trackway in Texas showing manus (hand) prints only from giant Early Cretaceous sauropods. Some scientists believe the lack of hind feet in the trackways indicate the animals were punting their way across a (to them) shallow body of water. The only dinosaur known of this size from Early Cretaceous North America is currently Sauroposeidon, hence the choice of dinosaur for this illustration. This is why I love dinosaur footprints. Bones can tell you a lot about an animal, but ony trace fossils like these can show what the animals were doing when they were alive!
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