Climate change, rather than competition, played a key role in the ascendancy of dinosaurs through the Late Triassic and Early Jurassic periods. According to new research, changes in global climate associated with the Triassic-Jurassic mass extinction – which wiped out many large terrestrial verte
Dinosaur ancestors are shown in this artist’s conception of life in the Chañares formation approximately 235 million years ago. Credit: Victor O. Leshyk, www.paleovista.com
In particular, sauropod-like dinosaurs, which became the giant herbivore species of the later Jurassic like, were able to thrive and expand across new territories as the planet warmed up after the extinction event, 201 million years ago.by an international team of paleontologists led by the Universities of Birmingham and Bristol, in the UK, Friedrich-Alexander University Erlangen-Nürnberg , in Germany, and the University of São Paulo in Brazil.
. They showed how the sauropods, and sauropod-like animals, with their long tails and necks and small heads, were the runaway success story of a turbulent period of evolution.University of Birmingham “The results were somewhat surprising, because it turns out that sauropods were really fussy from the get-go: later in their evolution they continue to stay in warmer areas and avoid polar regions.”
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