Villar del Arzobispo Formation, Geological formation in Aragon, Spain.
The Villar del Arzobispo Formation is a sequence of rock layers in eastern Spain made up of clay, mud, and limestone deposits. These layers built up in a shallow basin setting and reveal changing environmental conditions over time.
The layers formed during the Late Jurassic and Early Cretaceous periods roughly 145 to 141 million years ago. This time saw a shift from shallow marine conditions to river-based environments across this region.
The formation holds numerous dinosaur remains, including specimens of Allosaurus and Turiasaurus, making it a crucial site for paleontological research in Europe.
The formation stretches across several sites in Teruel and Valencia provinces and can be studied at multiple exposed locations. Researchers typically reach these places via established access routes through the hills.
The layers hold the remains of large dinosaurs like the hunter Allosaurus and the long-necked Turiasaurus. These fossil finds make the area a key place for understanding the wildlife that lived on this ancient land.
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