Titanoboa!

[Leptonyx]

As much as I love snakes, I'm actually quite glad that this one didn't make it past the prehistoric ages...imagine the feeding demos you could do with a 43-foot crocodile-eating boa!

Giant snake: Fossil of 43-foot super snake Titanoboa found in Colombia - Los Angeles Times

 

[djaeon]

Wow, that would have been a pretty amazing snake to see!

 

[Chlidonias]

http://www.zoochat.com/65/worlds-biggest-snake-63381/

 

[dragon(ele)nerd]

That snake is so massive, I love large animals, beauties of nature, my mum usual tells me when she was kid a in Malaysia about everu 3 years there would be an absoulte massive snake found nearby.