Fossils of Largest Snake Give Hint of Hot Earth

The NY Times reports:

Some 60 million years ago, well after the demise of the dinosaurs, a giant relative of today’s boa constrictors, weighing more than a ton and measuring 42 feet long, hunted crocodiles in rain-washed tropical forests in northern South America, according to a new fossil discovery. The fossil find — a batch of super-sized vertebrae pulled from an open-pit coal mine in northeast Colombia — is remarkable enough just as a paleontological extreme. The species, given the name Titanoboa cerrejonensis, is now the largest known snake species ever discovered. But the existence of such a large snake may also help clarify how hot the tropics became during an era when the planet, as a whole, was far warmer than it is now, and also how well moist tropical ecosystems can tolerate a much warmer global climate. An independent critique of the work by Matthew Huber, an earth and climate scientist at Purdue, also published in Nature, said the findings provided a hint that the tropics could get a lot warmer than they are now, but also “attest to the resiliency of tropical ecosystems in the face of extreme warming.”...