The latest Smithsonian Magazine has a artist's conception of a prehistoric snake on it's cover, who's fossilized remains were found in South America. A skeleton that includes a skull, something that is generally missing in fossilized snakes due to the loose connectivity of the bones structures in snakes is discussed at length in the artical therin. It is estimated that the snake was from 42'-49' in length with a head in the realm of nearly two feet in length. For comparison purposes a photo accompanying the article shows a vertebrae from a 17' Anaconda besides a vertabrae thought to be from a similer area of the body of the giant. It appears to be roughly six times the overall diameter and mass of the modern day animal. Think of your big toe compared to your calf! Who would not love to see such a creature alive today, albeit from beyond striking range!