Miria Formation, Geological formation in Carnarvon Basin, Western Australia.
The Miria Formation is a geological layer in the Carnarvon Basin made of shell-derived limestone that spreads across multiple regions of Western Australia. The deposits range from 0.6 to 2.1 meters thick and contain phosphatic nodules that help identify weathered sediments when examined.
This layer comes from the late Maastrichtian period about 70.6 to 66 million years ago and holds significant fossil remains from the Cretaceous. The deposits provide key evidence for life at the boundary when dinosaurs were disappearing.
Scientists from multiple research institutions study the formation to understand the extinction patterns and prehistoric life during the Late Cretaceous period.
Visiting this formation requires geological knowledge and specialist guidance since these are specialized research areas. Travelers should check local conditions and access rules beforehand.
The layer holds an unusual mix of fossils from pterosaurs, sea turtles, and theropod dinosaurs together. This variety makes it a window into the last age of dinosaurs, with shark teeth and ammonites also preserved.
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