Largest Prehistoric Snake On Record Discovered In Colombia

minimen writes "Scientists have recovered fossils of a 60-million-year-old South American snake. Named Titanoboa cerrejonensis by its discoverers, the size of the snake's vertebrae suggest it weighed 1140 kg (2,500 pounds) and measured 13 meters (42.7 feet) nose to tail tip. According to the Guinness Book of World Records, the longest snake ever measured was 10 meters (33 feet) in length. The heaviest snake, a python, weighed 183 kilograms (403 pounds)."

Comments

Something even more bloated than Python?

[pavon]

I don't believe it :P

First snake on a plane

[Kligat]

Was it discovered at Amelia Earhart's crash site?

Re:First snake on a plane

[GrayCalx]

"Well we'd have to be talkin' about one charming motherfuckin' Titanoboa Cerrejonensis."

I dont know about you.

[jellomizer]

But if a Snake like that told me to eat the forbidden fruit, I would.

Re:The record for the world's largest *living* sna

[Anonymous Coward]

Aren't you afraid it's going to bite your tiny penis?

Re:Slashdotted,

[Bearhouse]

Well, we're unfortunately pretty good at exterminating megafauna, regardless of climate & habitat. It's the superbugs we're breeding and/or spreading around the planet that worry me.

You're right about the article, tho. interesting:

'Paleontologists have long known of a rough correlation between an age's temperature and the size of its poikilotherms (cold-blooded creatures). Over geological time, as ages get warmer, so does the upper size limit on poikilotherms.

"There are many ways the anatomy of a species is correlated with its environment on broad scales," Polly said. "If we understand these correlations better, we will know more about how climate and climate change affect species, as well as how we can infer things about past climates from the morphology of the species that lived back then."

Assuming the Earth today is not particularly unusual, Head and Dr Jonathan Bloch, Assistant Curator of Vertebrate Paleontology at the Florida Museum of Natural History, estimated a snake of Titanoboa's size would have required an average annual temperature of 30 to 34ÂC (86 to 93 F) to survive. By comparison, the average yearly temperature of today's Cartagena, a Colombian coastal city, is about 28ÂC.

"Tropical ecosystems of South America were surprisingly different 60 million years ago," said Bloch. "It was a rainforest, like today, but it was even hotter and the cold-blooded reptiles were all substantially larger. The result was, among other things, the largest snakes the world has ever seen... and hopefully ever will."

"The temperature estimation shows that a tropical rainforest, like Cerrejon, lived at a temperature of 32ÂC, five degrees above the upper limit of temperature for tropical rainforest in modern times," said Carlos Jaramillo, a palaeobotanist ad the Smithsonian Topical Research Institute. "These data challenge the view that tropical vegetation lives near its climatic optimum and it has profound implications in understanding the effect of current global warming on tropical plants."'

D&D

[Dyinobal]

I think my level 12 wizard fought this in a D&D campaign, if I recall it failed it's fort save and was disintegrated. Though obviously that didn't happen to this one as disintegration leaves only dust as everyone knows.

Cumulative estimation error

[Bob-taro]

I'm not saying this isn't interesting or that the estimates are completely worthless, but we find some fossilized snake vertebrae, make an educated guess as to what part of the the snake they came from, extrapolate based on modern snake proportions the size and weight of the entire snake, then estimate the temperature of this snake's original environment based on that size. I'm no biologist, so maybe it's more accurate than it sounds, but it seems there is a pretty significant margin of error at each step, not to mention a lot of assumptions.

Re:Cumulative estimation error

[jd]

Well, the BBC's article reports that they found bones from twelve snakes, so it's a fair assumption that they found quite a number of bones and therefore have a good idea of what part of the snake they are from.

Estimating the size does assume that you've some idea of how bones scale, but there are plenty of examples of modern snakes that range from the very small to the very large, so there should be a fair amount of data on this. The key question on this is whether they measured multiple data points or just one or two. If they measured a large number of data points and they all scale by the amounts predicted if modern vertebrae are a good indicator, then it's safe to say that modern vertebrae are indeed a good indicator, and that the resulting size is probably correct.

The temperature is slightly easier. Anything cold-blooded has to rely on external heat sources to survive. The surface area will tell you how quickly heat can be absorbed, but also how quickly heat will be lost. If a snake drops below a critical temperature, it ceases to be active. Even colder, it cannot digest food and can even rot. The ambient temperature must have been high enough for the snake to thrive in the warmer months and at least endure when it got cold.

However, there will be margins of error for all of these calculations. There is also no ceiling on the margin of error for temperature (these snakes can't have been larger than the maximum size that could survive, but could always be smaller by any amount). The maximum size of this species, under the conditions of the time, are therefore unknown, and certainly can't be assumed to be remotely close to the maximum size of the species overall.

In fact, given that the giant crocodiles of about that time were around 40' long and that these snakes probably ate such crocodiles, it would not be at all unreasonable to guess that these were juveniles rather than full-grown. This would also go a long way to explaining why there were so many in one spot. Snakes are not known for being social animals.

If we assume these were indeed juveniles, full-grown snakes of this species might easily have been in the 60-80' range. Of course, if we could just find the nearest living relative and back out all the modern genetic patches, we could find out.

Re:Ruby is *much* lighter!

[Joe the Lesser]

And Java covers 126,700 sq km!

Re:Badger badger badger

[Abreu]

This creature could have devoured elephants

Really? I thought it was a hat...

Or not scary enough

[Moraelin]

Well, if you consider that:

- A T-Rex by modern estimates can be as low as 5m/s (11 mph) and by other estimates a sprint of over 10m/s would produce fatal forces in its bones. It only had to chase down animals his own size, which also waddled slowly.

- the Indricotherium Transsouralicum that you mention was basically an overly massive giraffe. Ok, technically a rhino which had evolved to fill the same niche as a giraffe. It was a herbivore which ate leaves off trees. Also you probably could outrun him too.

- you'd probably be as impractical a prey for a Megalodon as it would be for a normal shark to hunt sardines. Marine animals which feed on stuff as disproportionately small compared to their own size, do so by filtering them out of the water (see the whale, for example), not by chasing them individually and chewing them to bits. So for a Megalodon you'd probably not even register as an interesting prey. It fed on similarly overgrown things.

A lot of the things nature produced just aren't as scary as you seem think. A movie about a battleship-sized shark that completely ignores the hero, or about a T-Rex that can be outrun even at a jogging or marathon pace, well, just wouldn't be much of a horror. A herd of small fast velociraptors is actually scarier by far.