First discovered in the 1950s, a remarkable fossil treasure trove was lost to science—until now
In 1951 two men arrived in Dom Pedrito, a town in southern Brazil, to carry out geological mapping of the pampa, or low grassland. There they found a rocky hill brimming with the remnants of a wetland ecosystem that existed some 260 million years ago.most of Earth’s landmass was still bound up in the supercontinent Pangea
Photographs of the Cerro Chato outcrop in Dom Pedrito, where fossils appear on the surface. The left image was taken in 1951, published by the first researchers to study the site. The right image was taken after the rediscovery of the site.Until now. In a, Brazilian paleontologists announced that the site at Dom Pedrito has been rediscovered at last.
An inquisitive child, he discovered that the fossil came from his own backyard, just outside Dom Pedrito, in the Brazilian state of Rio Grande do Sul. He was 10 years old when he set out to look for more of the curious rocks, walking the rolling hills of his family’s property with his mother. In 2019 Goulart reached out to the city for help with the preservation of fossils on his property. Paleobotanist Margot Guerra Sommer and geologist Rualdo Menegat, both from the Federal University of Rio Grande do Sul, were sent to the area to get a better understanding of what was there.
She was digging through a repository of old scientific journals online, tasked with searching for any existing references to a fossil site on a piece of land belonging to a family named Goulart. Ferraz hadn’t expected to find much, but hidden among the scientific work from decades past, in an annuary from the Brazilian Academy of Sciences, was a six-page article from 1951, written by Emmanoel A. Martins and Mariano Sena Sobrinho.
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