Titanoboa, meaning "titanic boa," is an extinct genus of snake that lived approximately 60–58 million years ago, during the Paleocene epoch, a 10-million-year period immediately following the dinosaur extinction event. The only known species is Titanoboa cerrejonensis, the largest, longest, and heaviest snake ever discovered, which supplanted the previous record holder, Gigantophis.

A full-scale model of the snake was unveiled at New York City's Grand Central station before the exhibit opens at the Smithsonian in Washington DC.

A man dressed as Mr. Destructoid checks his mobile phone while gamers play a game at the 2014 Electronic Entertainment Expo, known as E3, in Los Angeles, June 10, 2014. REUTERS/Jonathan Alcorn

Members of the Gremlins Carnival Club, open the doors to their workshop to unveil for the first time their cart, Jungle Drums, which is their entry to this year's Bridgwater Carnival, on November 4, 2011 in Bridgwater, England. (Photo by Matt Cardy/Getty Images)

Yannis Behrakis, one of Reuters' most decorated and best-loved photographers, has passed away after a long battle with cancer. He was 58. Here: A pro-government Sierra Leonean fighter bites a bullet as he takes position in no man's land 2 km ahead of Rogberi junction where evidence of executed UN troops were found after heavy fighting between government troops and RUF rebels 100 km north east of Freetown, Sierra Leone, May 23, 2000. (Photo by Yannis Behrakis/Reuters)

A member of the Knights Guard cleans the ice during the Vegas Golden Knights' game against the Colorado Avalanche at T-Mobile Arena on April 28, 2021 in Las Vegas, Nevada. The Golden Knights defeated the Avalanche 5-2. (Photo by Ethan Miller/Getty Images via AFP Photo)

In this photo provided by Greenpeace, clothes are left to dry on a typhoon damaged tree in Surigao City, southern Philippines on Monday December 20, 2021. The governor of a central Philippine province devastated by Typhoon Rai last week pleaded on radio Tuesday for the government to quickly send food and other aid, warning that without outside help, army troops and police forces would have to be deployed to prevent looting amid growing hunger. (Photo by Jilson Tiu/Greenpeace via AP Photo)

Italy's Charlene Guignard (L) and Marco Fabbri react to their score after the ice dance rhythm dance competition during the ISU World Figure Skating Championships 2023 in Saitama, on March 24, 2023. (Photo by Kazuhiro Nogi/AFP Photo)

American media personality and socialite Kim Kardashian poses at GQ's Men of the Year Party at Bar Marmont, Thursday, November 16, 2023, in Los Angeles. (Photo by Chris Pizzello/AP Photo)