π bbc.co.uk
The rock that records the end of the dinosaurs
A slice of rock from North Dakota in the US illustrates a key transition in Earth history.
β https://www.bbc.co.uk/news/science-environment-61018155A slice of rock from North Dakota in the US illustrates a key transition in Earth history.
β https://www.bbc.co.uk/news/science-environment-61018155