Climate change around the Triassic-Jurassic mass extinction may have wiped out some of the competition.
An team of paleontologists from the United Kingdom, Germany, and Brazil compared computer models of global climate conditions, such as rainfall and temperature, withof dinosaurs during this time period. Their work showed how both sauropods and sauropod-like animals were a winner during this turbulent period on Earth.
Dinosaur ancestors are shown in this illustration of life in the Chañares formation in present-day Argentina approximately 235 million years ago. CREDIT: Victor O. Leshyk, www.paleovista.com. “What we see in the data suggests that instead of dinosaurs being outcompeted by other large vertebrates, it was variations in climate conditions that were restricting their diversity,” Emma Dunne, study co-author and paleontologist at Friedrich-Alexander University Erlangen-Nürnberg, said. “But once these conditions changed across the Triassic-Jurassic boundary, they were able to flourish.
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