An artist's illustration of Titanoboa cerrejonensis
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Boidae
Subfamily: Boinae
Genus: Titanoboa
Head et al., 2009
Species: T. cerrejonensis
Binomial name
Titanoboa cerrejonensis
Head et al., 2009

Titanoboa (meaning "Titanic Boa") is an extinct genus of very large genus of snake that lived in La Guajira in northeastern Colombia during the Paleocene epoch around 60–58 million years ago.

The giant snake lived during the Middle to Late Paleocene epoch, a 10-million-year period immediately following the Cretaceous-Paleogene extinction event.

The only known species is Titanoboa cerrejonensis, the largest snake ever discovered, which supplanted the previous record holder, Gigantophis.


The name Titanoboa means "titanic boa". The species epithet cerrejonensis refers to the Cerre coal mine and the Cerrejón Formation, in which the fossils have been found.


By comparing the sizes and shapes of its fossilized vertebrae to those of extant snakes, researchers estimated that the largest individuals of T. cerrejonensis found had a total length around 15.2 meters (50 feet) and weighed about 1,135 kilograms (2,500 lbs; 1.12 long tons; 1.25 short tons).

Name and discovery

In 2009, the fossils of 28 individuals of T. cerrejonensis were found in the Cerrejón Formation of the coal mines of Cerrejón in La Guajira, Colombia. Before this discovery, few fossils of Paleocene-epoch vertebrates had been found in ancient tropical environments of South America. The snake was discovered on an expedition by a team of international scientists led by Jonathan Bloch, a University of Florida vertebrate paleontologist, and Carlos Jaramillo, a paleobotanist from the Smithsonian Tropical Research Institute in Panama.

Among them were giant turtles guessing they ate giant turtle, large fish, and giant crocodiles. One piece of vertebrae was sent to the Smithsonian thought to have been belonged to a crocodile, but a closer look at the fossils by a snake expert while unwrapping the backbone proved this to not be the case. The fossils actually belonged to the largest known species of snake that ever lived. Paleontologists were eager to go to South America and see what more they can uncover of this titanic snake. After several weeks of failed attempts, they finally found several bones and found several more larger vertebrae and even a skull, and were able to conclude that this massive snake was by far the largest ever discovered. It was named Titanoboa cerrejonensis, for its impressive size and being found in the area of the Cerrejon jungle. A closer analysis of the skull proved that this reptile was more closely related to Boas than Anacondas, despite being so big. Many scientists have said that Titanoboa is the find of the decade, and that it's one of the most important finds since finding Tyrannosaurus rex in 1905. Not just Titanoboa was an important find, but the entire fossil site was also a great contribution to science. It revealed a new type of ecosystem in South America previously unknown to science and shows what kinds of animals ruled South America after the dinosaurs were wiped out. It was 50 feet long the biggest snake in the world, probably longer than the T.Rex at times.

Diet and feeding

Titanoboa eating a crocodilian

Titanoboa was one of the largest land animals of it's time, so it needed a lot of food to keep healthy. However it did not eat that often. The crocodiles of the ancient Cerrejon rainforest fell prey to Titanoboa, after eating it, the snake would not have to feed for a whole year. Titanoboa was a chronological ancestor of boas and anacondas, and like them it was a constrictor, but could give ten times the pressure of that from a common anaconda. Titanoboa would also eat large fish on usual occasion. Like modern-day snakes, it could also dislocate its jaws to help swallow prey bigger than its own head whole such as small mammals. It would also sometimes eat other snakes but paleontologists are not sure. There's also evidence that points out it also ate species of aquatic invertebrates, such as variants of large fish; but there's no proof or indication that this was its only Prey item. We can only suggest that the Titanoboa ate a wide variety of things from crocodiles, to aquatic prey, such as large amphibians or car-sized fish.


Titanoboa inhabited the first recorded tropical forest in South America. It shared its ecosystem with large Crocodylomorpha and large turtles. The paleogeography of the Late Paleocene was a sheltered paralic (coastal) swamp area, sheltered by the emerging later Guajira hills in the west and the slowly rising present-day Serranía del Perijá in the east, with an open connection to the proto-Caribbean in the north. In this environment the tropical aquatic ferns of the genus Salvinia flourished, as evidenced by fossils found in Cerrejón, the Bogota Formation and the Palermo Formation.

While initially thought to have been an apex predator of the Paleocene ecosystem in which it lived, analysis of the cranial elements of Titanoboa possess unique features relative to other boids. These features include high palatal and marginal tooth position counts, low-angled quadrate orientation, and reduced palatine-pterygoid and ptery. This has pointed to the genus being dominantly piscivorous; a trait unique to Titanoboa among all boids.

The size of T. cerrejonensis has also provided clues as to the earth's climate during its existence; because snakes are ectothermic, a study published in 2003 in the journal Palaeogeography, Palaeoclimatology, Palaeoecology argued that the discovery implies that the tropics, the creature's habitat, must have been warmer than previously thought, averaging about 32°C (90°F).

The warmer climate of the Earth during the time of T. cerrejonensis allowed cold-blooded snakes to attain much larger sizes than modern snakes. Today, larger ectothermic animals are found in the tropics, where it is hottest, and smaller ones are found farther from the equator.

Other researchers disagree with the above climate estimate. For example, a 2009 study in the journal Nature applying the mathematical model used in the 2003 study to an ancient lizard fossil from temperate Australia predicts that lizards currently living in tropical areas should be capable of reaching 10 to 14 meters (33 to 46 feet), which is not the case.

In another critique published in the same journal, Mark Denny, a specialist in biomechanics, noted that the snake was so large and was producing so much metabolic heat that the ambient temperature must have been four to six degrees cooler than the current estimate, or the snake would have overheated.

Titanoboa was the largest snake ever discovered, measuring a max-size of about 50 feet (15 meters) long and 1.135 tons in weight. Although more closely related to modern-day boas, most scientists agree that this monster snake behaved more like a modern-day green anaconda, spending most of its time in water to support its massive size. Like most snakes, this snake was an expert ambush predator, capable of striking at incredible speeds at unsuspecting prey. Along with spending most of its time underwater, Titanoboa also hunted under water, since no prey capable of feeding it lived strictly on land and being a terrestrial hunter would've been damaging to its internal organs from its massive weight. Like modern constrictors, it had a very muscular, legless body that was perfectly designed for wrapping around large prey and squeezing the life out of it.

It also had a jaw that could dislocate and help swallow prey items whole that were bigger than its head. It's also likely that, when in danger from massive, 40-foot (12-meter) long crocodiles, Titanoboa could regurgitate a large meal that it had just eaten to get away. Like modern-day snakes, it also had a forked tongue that helped it locate its prey underwater.

To find out how this large and heavy snake could move, scientists constructed a life-size and weight robotic model to study the movement of Titanoboa, which appealed to the fact that the Titanoboa smashed down on its prey when constricting, would crush its prey or whatever that got trapped in there would die from respiratory failure, which was immediate. The pressure would've crushed the prey's ribs, and obliterated its lungs, which killed the prey right away.

In popular culture

Ever since its discovery in early 2009, Titanoboa has been gaining a lot of public attention. It had its own documentary by the Smithsonian Channel, where it talked about what this huge reptile looked like, how it lived, and how its environment looked while scientists tried to further uncover it and piece it together. It even had its own entire article in the Smithsonian magazine.

On March 22, 2012, a full-scale-model replica of a 14.6 meters (48 feet), 1,135 kilograms (2,500 lbs) Titanoboa was displayed in Grand Central Terminal in Midtown Manhattan in New York City, New York.

  • Titanoboa was also featured in one of the episodes of Primeval: New World, where it killed a pair of scientists on a boat and nearly killed many more.
  • It also has its own life-size statued in an exhibit in the Smithsonian Museum. İn another documentary about the animal, the Titanoboa is 'estimated' to overwhelm\overpower even Tyrannosaurus!
  • It also appears Jurassic Park Builder as a gold creature in the Glacier Park, even though as a cold-blooded animal that lived in the humid jungle, it would've died in the frozen island off the coast of Patagonia. It appears to have rattlesnake-like fangs even though it would've had non-venomous recurved teeth like modern boas and they constricted prey (the game's special attack even has it constrict the opponent).
  • Titanoboa makes an appearance in the Cenozoic Park section of Jurassic World: The Game as a tournament Cavern creature. As in Jurassic Park: Builder, it is inaccurately portrayed with fangs, although they are much smaller and included alongside the recurved teeth a modern boa would have.
  • Titanoboa also appears in Dino Dana where one even licks Dana.
  • It was going to appear in The Stomping Land before the game was canceled. But the model was bought and will be used for The Isle.
  • It is also in ARK: Survival Evolved. It has a frill in the similar to the frilled lizard and the Jurassic Park Dilophosaurus, even though such a frill would make it incredibly difficult for this animal to slither.
  • It appeared in the 2012 Documentary Titanoboa: Monster Snake on the Smithsonian Channel.
  • It also made It's 2nd appearance in the 2016 PBS Documentary Secrets of the Dead: Graveyard of the Giant Beasts.
  • Titanoboa makes an appearance in Jurassic World: Alive as a Cenozoic creature. Like in Jurassic Park: Builder and Jurassic World: The Game, it is inaccurately portrayed with fangs, although, like Jurassic World: The Game, they are much smaller and included alongside the recurved teeth a modern boa would have. It's an Epic creature, and the game requires you to dart 150 Titanoboa DNA to fully unlock it. It also has a gen 2 version.