Petroglyphs were incised in rock near footprints of theropods, sauropods, and ornithopods.
Ancient South Americans were apparently inspired by fossilized dinosaur tracks in what is now eastern Brazil, where they cut figures into the rock, imprinted tens of millions of years earlier by the movements of giants. The dinosaur tracks belong to theropods, sauropods, and iguanodontians, and are spread across three rock outcroppings in the Brazilian state of Paraíba.
In fact, fossil smuggling out of Brazil remains a vexing problem for authorities. The proximity of the petroglyphs to the fossilized footprints reveals “active engagement with the fossil material,” the team wrote, “suggesting that these traces not only caught the attention of the native community but were meaningful and became integrated into their knowledge repertoire.
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