Mega Beasts: T-Rex of the Deep (HD Quality) [Part 3/5]

[wererapterps3]

btw mega beasts isnt aprogram about mosasaurs its a program where they pit 2 creatures against each other and create metal versions of their heads or weapons

[HanilHeartless]

>Just to clarify, i thought it because i hate megalodon and all that bullshit that it was the biggest and meanest thing ever, i hate megalodons and i rather believe a marine reptile would be bigger and cooler than it, also tylosaurus is my favorite marine reptile and if they were to find a larger mosasaur than lioplourodon i would like it better than liopleurodon. also Steve alten's hells aquarium features a fight with lio and meg and, guess who wins?

[Tim14306]

short necked plesisaurs are called pliosaurs and they grow larger the mossoasaurs and are more successful

[nhoj084eva]

7:25 as you can see the Mosasaurus specialise in the Missionary Position

[WarriorX9000]

Lochness monster vs. mozasaur

[TheHydeie]

the pleaseasorus or however u spell it. lives in the loch ness in the united kingdom and ppl think its still in there :P

[bloodymary12100]

megalodon would have destroyed mosasaur.megalodon was the top predator of all time.

[AceofDlamonds]

I mean we would never consider Megalodon a subspecies of the great white even though their existence overlapped.

I'm sure if Predator X, who's bones have been documented, was tested properly, they could determine whether it is of the Liopleurodon genus or not.....but the fact is, they have no reason to suspect it is, as the morphology, if I'm not mistaken, is significantly different.

subspecies, it will not be.

[natesdevices]

@AceofDlamonds no its not that guy, but were probably dealing with similar peeps.

[AceofDlamonds]

You don't have to want Liopleurodon to be huge........the largest confirmed specimens aren't even half of the size of the very biggest pliosaurs....

Many people want Liopleurodon to have "possibly" bigger or even gigantic species, probably because of the false info of 75 foot lios, but the fact remains.....with what we do have....we have 20 foot ADULTS. Let's move on already......thanks....there are MUCH BIGGER fish in the ocean....or reptiles.... =)

Aceofdlamonds

[AceofDlamonds]

@natesdevices

...continued....L. ferox is the largest species known so far....and yet estimated at a max of 23ish feet..so there are smaller species. You actually assert Predator X may be a "subspecies" of L. ferox? An actual subspecies? That's extremely improbable as subspecies are not that variable at all, let alone species!

Most likely, it would be a related animal, in the big pliosaur family. Why must you speculate about L. ferox only? There are bigger and more well known plios out there.

[AceofDlamonds]

As for the 75 foot+ Liopleurodons, they are largely the product of BBC's extensive (and sometimes outdated) broadcasts on Prehistoric Animals.

Many of the species they describe aren't all they're cracked up to be. Don't get me wrong, I think BBC is a superb network, but they HAVE displayed some controversial claims on some of the documentaries...

[natesdevices]

for the record, there is about evenly matched evidence that liopluerodon could hav been 80 ft, and that it could only hav been 25 to 50 ft, Im gonna put my money on 55 ft even, not to pinch anyone's nerves er anything. Also, tylerosaurus was around the same size as a mosasaurus, as they were both mosasaurs it might be an interesting battle, and for that matter , how bout we throw in a 50 ft lio to the mix? :)

[AceofDlamonds]

@natesdevices

Nope, Liopleurodon was only 6-7 meters average. There is no proof at ALL of Liopleurodon ferox reaching half that size.

Tylosaurus was around the same size as Mosasaurus.....about 50 feet max for both.....and some pliosaurs are around the general size range as well.......but Liopleurodon was NOT one of them....the largest L. ferox skull was 4.9 feet long......now how do you get an 80 foot monster out of that size skull?

[natesdevices]

@AceofDlamonds i never said it was 80 ft. i merely stated that there was and is evidence that states that. i personally think it would have reached 55 ft on average. maybe if u knew how to read u would have picked up on that as i mentioned 50 ft TWICE. the liopluerodon ferpx skeletons found, meaning at not very many r most likely not their average max size. btw, srry for the mean comment but u reaaly didnt listen to my earlier comment all that well... and ur comment seemed a bit smug

[AceofDlamonds]

@natesdevices

there is no evidence of an 80 foot specimen at all. You'd need an unimaginably huge skull to make it definitive. Thinking and seeing......hmmm.... The largest specimen found has a skull 4.9 feet long. We already know adult Kronosaurs were much smaller than originally thought.........now about 30 ft or so? I need to recheck....and the Lio skull isn't big at all...They were adult specimens too. Total proof for 21 feet, but estimated to be up to 25 feet, give or take a few feet.

[natesdevices]

@AceofDlamonds ok, once again, I didnt say i think it was 80 ft, ur not picking up on my comments

[AceofDlamonds]

@natesdevices

But you did say there may be evidence of it did you not?

[natesdevices]

@AceofDlamonds because of the fact that that were dealing with an animal who in nature would fill the same role as a sperm whale or mosasaur, it leaves room to speculate that a species of lio, if not ferox itself, could have grown to an immense whale like size. i mean, it probably didnt, but there is room 4 interpretation

[AceofDlamonds]

@natesdevices

Ok so you're talking about an argument from niches....sure it's possible; there are other pliosaur species that have been estimated to reach more than 50 feet in length: the length of sperm whales and large mosasaurs......but Liopleurodon at 20 or so feet, adult size I don't think would be much larger than other large ocean predators at the time.........the niche roles won't be too far apart.

[natesdevices]

@AceofDlamonds wat im saying is that there could have been a genus of lio, not ferox but another as there r other members of the specifically lio family other then ferox, that did reach the a much larger sizes im talking about, perhaps not 80 ft but still massive. i believe, as my own theory, that predator x is asubspecies of lio as it lived in the same time and was most likely widespread across the world, also it share extreme skeletal similarities to ferox. do u c where im coming from?

[AceofDlamonds]

@natesdevices

I KNOW what you meant. And it's simply a baseless argument. If there is no base to it, why use it? For example, we can apply that to any other genus of animal. Take Ursus arctos....the brown bear. Are humans of 12,000 A.D. to believe that Polar bears (Ursus maritimus) would reach immense sizes compared to browns? They can't make that assertion without more evidence, and it would turn out they're wrong anyway.

Genus' aren't immensely variable like that. And Pred X,..continued...

[natesdevices]

@AceofDlamonds ur thinking to closed mindedly. considering that there r most likely thousands of undiscovered mesozoic species u need infer to a certain extent wat the ecology of an extinct enviroment was like. and so u know, the polar bear IS immensly larger then the brown bear by evolutionary standars as the course of time to evolve into polar bears was only a few thousand years, that is evolution on steroids.

[AceofDlamonds]

@natesdevices

Close minded!?? This is how evolution works buddy......you're actually suggested a SUBSPECIES of L. ferox that would be close to the size of predator X, which, as I've stated before, is unsupported. First of all, there already ARE 50 foot pliosaurs that have been discovered.....and they are at least twice as long as the biggest L. ferox skull ever found.

When you say things like "maybe" or "could be" it's wishful thinking from refuted reports of huge lios. What about others?

[natesdevices]

@AceofDlamonds the only reason i say subspecies is because if there was a a larger member of lio to b identified it WOULD be classified as a subspecies, that is only because ferox was the first member of the species discovered. Tarborosaurus is most likely a SUBSPECIES of trex and wat im saying works on the same principle. and for the love of god, stop talking about ferox! there r a dozen subspecies of lio identified so the name lio is not to b taken so specifically.

[AceofDlamonds]

@natesdevices

sorry subspecies doesn't work that way. If there was an abnormally large Lio (20 feet long remember), found, it would be another species....and only if they definitively proved it was Liopleurodon genus, which I'm not counting on any time soon. What if we apply your "possibilities" to other animals? We could conjure up imaginations of 85 foot Megalodon. They are arguments from ignorance (it isn't disproved, therefore I believe it). We have NO teeth of meg that indicate such size.

[AceofDlamonds]

@natesdevices

continued.........And...nate (sorry if this reply is too long), the largest skull found is 4.9 feet, period. This indicates an animal (using the method for Kronosaurus et al) around the 24 foot range. This is a BIG guy for his genus. Whenever we find a new, giant pliosaur, ppl immediately want to vindicate BBC's fantasy giant and label the next big thing as a "possible member" of Liopleurodon. But why? the scientific process insists that you try to find better matches.

Ace...

[natesdevices]

@AceofDlamonds actually, im in a fight online with this guy who claims based on a tooth that was recently discovered that there was a 80 ft long meg, tho i think thats ridiculous. the reason i say predator x as a subspecies was because he and ferox evolved at roughly the same time, from the same common ancestor, share skeletal traits that r significantly more similar to eachother then other pliosaurs, and most likely lived in the same waters. if tarboro was found first rex would be a subspecies

[AceofDlamonds]

@natesdevices

Tarboro and T-rex were about the same size.....and are often said to be synonomous.....probably with Tarbo being a junior synonym...if we have enough evidence.

But subspecies won't work when the size difference is as great as it is....look at tiger subspecies....they are relics of the prehistoric asian populations...the size disparity isn't that varied. Same with lions.

Predator X probably shared a recent common ancestor with Liopleurodon, but no subspecies. 50 feet > 20 feet

[KadoatieXD]

Hey, wernt their giant pilosaurs (the short necked 1s) and they had a similar body shape to the mosasaurs? They looked lik mosasaurs, so I think they were a competiton to mosasaurs.

[natesdevices]

@KadoatieXD they were basically extinct by the creteaceous because of the receding of the oceans. the remaining ones were small and weak, not fit to rule as it were.

[natesdevices]

@KadoatieXD the ones in this video r examples of wat i mean

[Tobius11]

second A Meg

[Tobius11]

the biggest predator ever was a whale levi

[carlogwapo1234]

CHUCK NORRIS DOLPHIN FROM HELL!

[GoGojiraGo]

short-necked plesiosaurs are called "pliosaurs", Mr. Narrator.

[BerZerker97]

I love the xiphactinus, they are so badass

[invisiblejaguar1]

a lot of the footage in this show is from when dinosaurs roamed america

[kashishkkhatri]

you rock

[trixzter03]

i love the "crunching" sound...XD

[SikuntXD]

loooks like a big ass platypuss with sharp teeth

[vk45de]

Predators don't usually fight, it's not like mosasaurs and ginsu sharks fought each other.

[nostopsnopurgatory]

I think the long neck plesiosaur is beautiful.

[BLowes45]

The largest sea reptile ever was Shonisaurus sikanniensis. It was a gigantic ichthyosaur from the triassic. It was about 70 ft. and even though the weight isn't given I'd say it was around 50 tons or so. To this day though the sperm whale is probably the largest marine predator ever. Theres a confirmed case of a bull that was 80 ft. long and weighed 60 tons.

[HanilHeartless]

i thought liopleurodon, a pliosaur, was the largest carnivorous thingy to hunt the oceans...

[PrehistoricBeasts]

@HanilHeartless

Yeah, so did I.

[cliffthelightning]

@PrehistoricBeasts It was... but that lived earlier

[PrehistoricBeasts]

@cliffthelightning

NO, It's wasn't.

You probably think that because you watched "Walking with the Dinosaurs", but Liopleurodon is afar from

being 25m, more like a 10-15m.

[cliffthelightning]

@PrehistoricBeasts Well i meant pliosaurs in general there where big species only the name in wwd is wrong

[redcarnotaurus]

@PrehistoricBeasts some people still believe that (including me). other people have different opinions on the sea monsters. but its just debate really. done properly, no harm done.

[redcarnotaurus]

also there are 4 things in the cretaceous sea that can stand up to a mosasaur:a kronosaurus, a maisaurus, a deinosuchus, and another mosasaur

[PrehistoricBeasts]

@redcarnotaurus

Kronosaurus is a lot smaller, but it would be a good fight.

Mauisaurus is a little bit bigger, but it's body isn't developed for fighting. It's head is too small and probably has a low-powered bite force, since it's used to hunt fish.

Deinosuchus and another Mosasaur... That would be a hell of a fight!

[stuchly1]

@PrehistoricBeasts 15 meters was a predator x, 7 - 10 m was liopleurodon, 11 - 12 m was kronosaurus.

[AceofDlamonds]

@cliffthelightning

it was never close to that size.......it was 7 meters

[Tareltonlives]

@HanilHeartless The largest pliosaur (not Liopluerodon) was about the same size as the largest mosasaurs-50 feet. However, it's possible other pliosaurs got even bigger, as did the giant shark Carcharodon. Not to mention all the whales-Basilosaurus, Brymygophyseter, Leviathan, the Sperm Whale, and the Blue and Fin whales (they do eat animals like krill and small fish)

[nuke2099]

@Tareltonlives Blue and fin whales arent classed as predators though because they filter feed.

[N00bcrunch3r]

@HanilHeartless

No! In fact, Liopleurodon was only a little bit bigger than an Orca. The largest aquatic predator is the blue Whale.

[nuke2099]

@N00bcrunch3r Its funny you day that because the blue whale is a filter feeder......so your wrong.

[N00bcrunch3r]

@nuke2099

Hmm...are implying that shrimp are not animals. Just because something it hunts something small does not mean it's not a predator. Otherwise, cats aren't predators.

To sum it up, they are animals. If you eat them alive, then you are a predator.

[nuke2099]

@N00bcrunch3r Yes I know what you mean but filter feeders aren't active predators that hunt such as orcas or sperm whales which are the only predatory whales alive currently. Basically predators hunt and blue whales and other filter feeders do not hunt.

[N00bcrunch3r]

@nuke2099

I never said they were active predators, but vaccuming small animals counts as predation. Anyway, as far largest active predators goes, is it a close call between Shinosaurus and the living Sperm Whale.

[LordTrilobite]

@HanilHeartless Liopleurodon has the biggest jaws of any carnivore known. But it was not the biggest in terms of body size.

[jmaan3]

@HanilHeartless Its probably debated since the flesh of the animal adds size to the bone (fossil) and thats all long gone. Also i think blue whales might be bigger then some of these monsters, i think the show means the biggest predators in the ocean ever not biggest sea animal period

[SitaraAleu]

@HanilHeartless

It's the heaviest. It's not the most powerful.

[iromazz]

molto interessante !