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News Release 15-067

Big dinosaurs steered clear of the tropics

Climate swings lasting millions of years too much for dinos

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drawing shwoing dinosaurs, fire and dry land

Some 212 million years ago, landscapes weren't all dinosaur-friendly: dry, hot, with wildfires.

Credit: Victor Leshyk


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The multi-colored slope-forming rocks of the Chinle Formation at Ghost Ranch, New Mexico.

The multi-colored slope-forming rocks of the Chinle Formation at Ghost Ranch, New Mexico.

Credit: Randall Irmis


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Scientist Randall Irmis taking notes at research site

Scientist Randall Irmis taking notes, and rock samples for extraction of pollen and spores.

Credit: Nathan Smith


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Geoscientists Jessica Whiteside and Maria Dunlavey taking rock samples at Ghost Ranch.

Geoscientists Jessica Whiteside and Maria Dunlavey taking rock samples at Ghost Ranch.

Credit: Randall Irmis


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Crew of scientists excavating fossils from Hayden Quarry at Ghost Ranch.

Looking back millions of years: Crews excavating fossils from Hayden Quarry at Ghost Ranch.

Credit: Randall Irmis


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A 212-million-year-old leg bone encased in rock next to a tool

A 212-million-year-old leg bone of a small, uncommon early carnivorous dinosaur encased in rock.

Credit: Randall Irmis


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