We may receive a commission on purchases made from links. Expanding across the borders of both Colorado and Utah, Dinosaur Valley National Monument is renowned for its perfectly preserved fossils ...

These elements include the footprints of various dinosaurs, dating back about 140 million years to the Lower Cretaceous period, along with several petroglyphs—a type of rock carving created by ...

We’ll never know if they knew about dinosaurs, but it is clear that they were curious about the prints and thought they were meaningful in some way.” The Serrote do Letreiro petroglyphs aren ...

m at the Serrote do Letreiro Site in Vale dos Dinossauros (“Dinosaur Valley”) Natural Monument, the petroglyphs have circular, abstract motifs and are similar to others in the region ...

Why Trust Us? Scientists in Brazil made a remarkable discovery—ancient human petroglyphs along dinosaurs tracks belonging to theropods, sauropods, and ornithopods. This is an incredibly rare ...

Generally, the window to run whitewater rafting trips in Colorado is from May to September, from spring to summer and fall.

In addition to the petroglyphs, the site also contains dinosaur tracks belonging to three types of dinosaurs: theropods, sauropods, and ornithopods. The researchers speculate that the ancient ...

The dinosaur tracks belong to theropods, sauropods, and iguanodontians, and are spread across three rock outcroppings in the Brazilian state of Paraíba. The petroglyphs on the site consist ...

In northeastern Brazil, in a geological formation called the Sousa Basin, 9,000-year-old man-made petroglyphs have been found alongside 100-million-year-old dinosaur footprints. A recent study ...