Los Colorados Formation, Sedimentary rock formation in San Juan Province, Argentina
Los Colorados Formation is a sedimentary rock formation in San Juan Province that spans roughly 600 meters and contains layers of sandstone, siltstone, mudstone, conglomerate, and gypsum. The different colored bands are clearly visible and reveal how sediments were deposited over millions of years.
The formation developed between 227 and 213 million years ago during the Late Triassic period and preserved remains of early dinosaurs and other reptiles. This time was crucial in the history of life on Earth as the first large land animals were emerging.
The formation draws paleontologists from around the world who come to study and work among its rock layers. The site has become a meeting place where scientists share their findings and collaborate on understanding ancient life.
Access to the formation works best through guided tours within the Ischigualasto Provincial Park, where knowledgeable guides explain the rock layers. The area is dry and hot, so visitors should bring plenty of water and sun protection.
The formation holds remains of several prosauropod species like Coloradisaurus, Lessemsaurus, and Riojasaurus, alongside the predator Zupaysaurus. This mix reveals how diverse animal life was during this ancient period.
The community of curious travelers
AroundUs brings together thousands of curated places, local tips, and hidden gems, enriched daily by 60,000 contributors worldwide.
