Dominating this era was
Titanoboa, discovered by Museum scientists, was the largest snake that ever lived. Estimated up to 50 feet long and 3 feet wide, this snake was the top predator in the world's first tropical rainforest.
Titanoboa, (Titanoboa cerrejonensis), extinct snake that lived during the Paleocene Epoch (66 million to 56 million years ago), considered to be the largest known member of the suborder Serpentes. Titanoboa is known from several fossils that have been dated to 58 million to 60 million years ago.
Longer than Tyrannosaurus rex, Titanoboa cerrejonensis is the biggest snake in the world known to science, living or extinct.
Titanoboa's fossilised vertebra showed that it was a whopping 13 metres (42 feet) long. By comparison, the largest verifiable record for a living snake belongs to a 10-metre-long reticulated python, and that was probably a striking exception.
According to experts, the longest snakes recorded have reached lengths of around 20 feet. There is no evidence a 50-feet (15 meter) specimen was spotted alongside a river as claimed in a video shared on social media.
Dominating this era was Titanoboa, the undisputed largest snake in the history of the world. Most of the fossil record of ancient snakes is comprised of vertebrae like the one that launched the Titanoboa investigation.
The super snake's kryptonite was natural climate change. In this case, it was probably shifting tectonics that disrupted ocean currents and lowered temperatures. Warm-blooded animals that could handle the cooler, drier conditions were now kings and queens of the jungle.
Megalodon would win a fight against Titanoboa.
The monster snake is a one-trick pony, and that trick isn't any good against a massive shark. Even if it managed to wrap about the shark, it's much too small to kill it. Megalodon was about 9 feet across and weighed 100,000lbs.
Crocodiles
Well, crocodiles share a heritage with dinosaurs as part of a group known as archosaurs (“ruling reptiles”), who date back to the Early Triassic period (250 million years ago). The earliest crocodilian, meanwhile, evolved around 95 million years ago, in the Late Cretaceous period.
However realistic that looked on the big screen, it's pure fantasy: There has been no hard fossil evidence that any dinosaur killed its prey with venom.
But scientists say a handful of surviving snake species were able to thrive in a post-apocalyptic world by hiding underground and going long periods without food. The resilient reptiles then spread out across the globe, evolving into the 3,000 or more species known today.
The Titanoboa is so much longer and thicker than the anaconda, making it a much more dangerous creature. Although we have fossil records of this animal, many questions exist such as this creature's preferred environment, whether it could lift a section of its body off the ground to strike, and what it ate.
As the Earth's temperatures rise, there's a possibility the Titanoboa - or something like it - could make a comeback. But scientist Dr Carlos Jaramillo points out that it wouldn't happen quickly: "It takes geological time to develop a new species. It could take a million years - but perhaps they will!"
Green anacondas are the heaviest snakes in the world. The heaviest anaconda ever recorded was 227 kilograms. This massive snake was 8.43 metres long, with a girth of 1.11 metres.
The megalodon had a stomach volume of almost 10,000 litres, meaning it would have been capable of eating prey up to 26 feet (8 m) long. While it would have been able to chomp up a modern Orca, this means it could not swallow a T. rex whole like in 'Meg 2: The Trench'.
Analysis of the jaw bones show that Titanoboa could crush its prey with a jaw force of 400 pounds per square inch. (Modern estimates of the bite of an anaconda top this, however, at 900 psi.)
The primary difference between a titanoboa vs anaconda has to be their size and weight. While both of these snakes are members of the Boidae family, they are extremely different sizes. The titanoboa far outweighs an anaconda, and is much longer than it too.
Additionally, as it turns out, Titanoboa also had considerably thick skin, described as "damn near bulletproof". As such, whenever the snake was shot at, it barely flinched. Titanoboa also possessed enhanced night vision, allowing it to see in the darkest places.
Titanoboa (/ˌtaɪtənəˈboʊə/; lit. 'titanic boa') is an extinct genus of giant boid, the family that includes all constrictors and anacondas, snake that lived in what is now La Guajira in northeastern Colombia during the middle and late intervals of the Paleocene.
Tyrannosaurus lived in North America during the late Cretaceous era around 66 to 68 million years ago. Titanoboas lived during the Paleocene era, after the extinction of the non-avian dinosaurs, in what is now Columbia around 60 million years ago. The two were separated by around seven million years.
Medusa is currently living at The Edge of Hell haunted house in Kansas City, Missouri, USA. She is owned by Full Moon Productions Inc, the agency behind the haunted house. When she received her record in 2011, she was over 25 feet long.
The Titanoboa lived in the Palaeogene Period and it is called the Titanoboa because of its size and it is short for titanic boa. The huge snake was a carnivore (which means that it would eat meat and kept leaves, stems and crops out of its diet).
Medusa was measured at 25 feet 2 inches, making her the longest snake in captivity. She also weighs in around 350 pounds.