Titanoboa, extinct snake that lived during the Paleocene Epoch (66 million to 56 million years ago), considered to be the largest known member of the suborder Serpentes. Most specimens are made up of vertebrae and ribs, which is typical of snake fossils. From extrapolations of body size made from excavated vertebrae (individual sections of the backbone), paleontologists have estimated that the body length of the average adult Titanoboa was roughly 13 metres (42.7 feet) and the average weight about 1,135 kg (1.25 tons). Fossils of Titanoboa cerrjonensis were found in a coal mine in northern Colombia in tropical South America. The age of the rocks that they were found in is about 58 million years old and what was really exciting about the coal mine initially was that it preserved the ancient remnants of a rainforest.

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