Ms Hull added: “A lot of people have speculated that volcanoes mattered to K-Pg, and we’re saying, ‘No, they didn’t.’”

Michael Henehan, a former researcher with Yale University who compiled the temperature records, said the temperature changes caused some species to move to a colder climate.

He said: “Volcanic activity in the late Cretaceous caused a gradual global warming event of about two degrees, but not mass extinction.

“A number of species moved toward the North and South poles but moved back well before the asteroid impact.”

source: express.co.uk

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