Sânpetru Formation, Paleontological formation in Sânpetru, Romania.
The Sânpetru Formation is a Cretaceous rock layer in the Hațeg Basin composed of sandstone and mudstone strata spanning several hundred meters. It preserves abundant fossils of dinosaurs and other ancient creatures within its geological layers.
The layers formed approximately 70 to 68 million years ago during the Late Cretaceous, when the area was a shallow basin. This period left behind evidence of distinct species adapted to the regional environment.
The formation draws international researchers who investigate the prehistoric life that once thrived in the Hațeg Basin. This site represents an important center for understanding ancient ecosystems and the creatures that inhabited this region.
The site lies within the Hațeg Basin accessible via multiple points along the Bărbat River valley. Visitors should prepare for uneven terrain and natural outdoor conditions typical of geological sites.
The formation contains fossils of dinosaur species that were noticeably smaller than related species elsewhere. This size difference resulted from long-term isolation and adaptation to local environmental conditions.
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