Titanoboa snake fossil found in Colombia.

Titanoboa is an extinct snake which lived 60 million years ago Paleogene. Its first discovered in coal mines in La Guajira, in 2009. Its name means " titanoboa". It was approximately 42 feet long and weighed around 2,500 kg. The size of Titanoboa has also provided clues as to the earth's climate during its existence. Because snakes are ectothermic, the discovery implies that the tropics must have been warmer than previously thought,averaging about 32°C. 

The warmer climate of the earth during the time of Titanoboa allowed cold-blooded snakes to attain much larger ectothermic animals are found in the tropics and smaller once are found farther from the equator.