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.

Charistan Hood, 4, eats an ice cream near a picture of former President Barack Obama at the Black-owned Ice Cream Heaven store on Blackout Day 2020 on July 07, 2020 in Miami Gardens, Florida. Supporters of Blackout Day have committed to only spending money at Black-owned businesses to showcase the economic power of the Black community. (Photo by Joe Raedle/Getty Images)

A Filipino activist builds an effigy depicting Philippine President Ferdinand Marcos Jr. ahead of Marcos' first State of the Nation Address, in Quezon City, Metro Manila, Philippines on July 24, 2022. (Photo by Lisa Marie David/Reuters)

Rwandan woman drummers perform during the photocall for “The Book of Life” at the Edinburgh International Festival on August 11, 2022 in Edinburgh, Scotland.The Women Drummers of Rwanda,have broken with tradition to empower women to take part in a exhilarating and liberating of musical art-form. (Photo by Jeff J. Mitchell/Getty Images)

Kids jump off the breakwater into the ocean ahead the Fourth of July holiday in Gloucester, Massachusetts, U.S., July 3, 2023. (Photo by Brian Snyder/Reuters)

A child watches as an adult poses for a photograph while holding a Thompson AR-15 rifle, which is inscribed with the likeness of former US President Donald Trump at the Tommy Gun Warehouse during the annual Rod of Iron Freedom Festival in Greeley, Pennsylvania, 07 October 2023. The festival is one of the the largest open carry festivals celebrating the 2nd Amendment in North America. (Photo by Will Oliver/EPA)

An Afghan burqa-clad woman with children ride a donkey in Kishim district of Badakhshan province on October 12, 2023. (Photo by Omer Abrar/AFP Photo)

A woman walks up the steps decorated ahead of the Chinese New Year festival in Beijing, China, Thursday, January 12, 2017. The Chinese Lunar New Year is the most important holiday for Chinese and hundreds of millions are expected to return to their hometown to spend the new year with their family and relatives. (Photo by Ng Han Guan/AP Photo)