Dinosaurs flourished in Europe right up until the asteroid impact that wiped them out 66 million years ago, a new study has found.
The theory that an asteroid rapidly killed off the dinosaurs is widely recognised, but until recently dinosaur fossils from the latest Cretaceous - the final stanza of dinosaur evolution - were known almost exclusively from North America.
This has raised questions about whether the sudden decline of dinosaurs in the American and Canadian west was merely a local story.
The study synthesises a flurry of research on European dinosaurs over the past two decades. Fossils of latest Cretaceous dinosaurs are now commonly discovered in Spain, France, Romania, and other countries.
By looking at the variety and ages of these fossils, a team of researchers led by Zoltan Csiki-Sava of the University of Bucharest has determined that dinosaurs remained diverse in European ecosystems very late into the Cretaceous.
In the Pyrenees of Spain and France, the best area in Europe for finding latest Cretaceous dinosaurs, meat and plant-eating species were present and seemingly flourishing during the final few hundred thousand years before the asteroid hit.
"For a long time, Europe was overshadowed by other continents when the understanding of the nature, composition and evolution of latest Cretaceous continental ecosystems was concerned," Csiki-Sava said.
"The last 25 years witnessed a huge effort across all Europe to improve our knowledge, and now we are on the brink of fathoming the significance of these new discoveries, and of the strange and new story they tell about life at the end of the Dinosaur Era," said Csiki-Sava.
"Everyone knows that an asteroid hit 66 million years ago and dinosaurs disappeared, but this story is mostly based on fossils from one part of the world, North America," Dr Steve Brusatte of the University of Edinburgh's School of GeoSciences (UK), an author on the report, said.
"We now know that European dinosaurs were thriving up to the asteroid impact, just like in North America. This is strong evidence that the asteroid really did kill off dinosaurs in their prime, all over the world at once," Brusatte added.
The study was published in the journal ZooKeys.
