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Dinosaur

Predator X vs. Megalodon

Hey wake up. Pliosaurus funkei has been described at 10-13 m. Bye bye the 15 m 45 tons. According to Colin McHenry, a 10-13 m pliosaur would weigh 11-20 tons. You should update your information instead of argue. Carcharocles was much larger by comparison.  (Jun 26, 2013 | post #741)

Dinosaur

Predator X vs. Megalodon

You're ridiculous. Shark skin is extremely hard (made of dermal teeth) and thick. A whale shark has a skin thickness of 15 cm. Predator X was much much smaller (10-12 m against 15, 18 perhaps 20 m for megalodon), much smaller jaws (skull length of 2-2,4 m against jaws up to 3 m wide for megalodon). Faster ? Predator X (appropriate name is Pliosaurus funkei) cruised at 5 m per second. Megalodon was at least as fast ad the modern great white. Check your facts right goddamnit.  (May 21, 2013 | post #711)

Dinosaur

Predator X vs. Megalodon

Predator X was 10-13 m (Pliosaurus funkei), a pliosaur that length would weigh in the 10-20 tons range. Megalodon was in excess of 16 m and was 50 tons +. No contest. And you're wrong, wider, broader jaws allows more easily to take on a big body than elongated jaws.  (Mar 31, 2013 | post #705)

Dinosaur

Megalodon vs. all

We have no material to argue that Livyatan was a pack hunter, even though it is a possibility. What we do know however is that the time meg vanished, 1,6-2 millions years ago, the once mighty killer sperm whales were then restricted to suck deep water squids. Whatever is the exact demise of Livyatan, it sounds likely that meg was the undoubtably most dominant top predator. We can suspect otherwise that both did not share exactly the same ecological niches and were perhaps not direct competitors. Their feeding apparatus is quite different and if we have plenty evidences of meg feeding habits, we have nothing about Livyatan.  (Mar 23, 2013 | post #94)

Dinosaur

Predator X vs. Megalodon

Don't play with the words you genius, "megalodon " or "meg" has been and is used as common name by almost any shark specialist. Topix is not a peer reviewed data so cut the shit please.  (Mar 23, 2013 | post #701)

Dinosaur

Predator X vs. Megalodon

103 tons is the maximum possible for megalodon, 50 tons is conservative. Both are credible, though 50 tons and more is safe.  (Mar 22, 2013 | post #698)

Dinosaur

Megalodon vs. all

Meg is of course more fearsome than a sperm whale as a big game killer and quite outclasses the largest pliosaurs known to date. The only far to be certain possible rival could be the still poorly known L. melvillei. A sure estimate for a large meg can be the one from the Florida Museum at 60 feet and 77 short tons.  (Mar 22, 2013 | post #92)

Dinosaur

Livyatan Melvillei vs Carcharocles Megalodon

If Livyatan reached 17,5 m and we assume this is not the maximum size, it could be even superior to the gigantic C.megalodon. But I think it is really hard to say at now. We need more material from both. And we'll have.  (Aug 2, 2012 | post #499)

Dinosaur

Leviathan melvillei vs megalodon

This is Livyatan melvillei and Carcharocles megalodon actually. The shark is superior. Upper size of Livyatan is 17,5 m. Carcharocles is 20,3 m and 103 metric tons. Livyatan was very short-lived and preyed on small-medium-sized whales. Carcharocles was very long-lived, dominated every oceans and preyed on larger and advanced whales, even sperm whales. Everyone who thinks Livyatan superior cannot do well-research or is a complete idiot. With the actual datas, Carcharocles megalodon was the ultimate apex predator in all oceans during perhaps more than 15 millions years. Livyatan was a formidable animal but wasn't comparable to Carcharocles in terms of success, survival and capability to kill extremely large preys.  (Jun 19, 2012 | post #7)

Dinosaur

Could anything take on a Healthy Adult Megalodon 1 on 1 E...

Already said about Livyatan. Tylosaurus proriger : 14 m, 4-8 tons Carcharocles : 18 m, 77 tons ....  (Jun 6, 2012 | post #43)

Dinosaur

Predator X vs. Megalodon

Ichthyosaurs, not Ichthyosaurus. Ichthyosaurs vanished at Mid Cretaceous and were the main preys of pliosaurs. There are not only a few shark species at the time. I am talking dominant as apex predators. Cardabiodontids seem to have outcompeted the last pliosaurs, like Kronosaurus. For more info, see Lamniform sharks : 110 millions years of ocean supremacy. Talk by Dr Mike Siversson on YouTube.  (Jun 5, 2012 | post #662)

Dinosaur

Predator X vs. Megalodon

The last pliosaurs species only crossed the first mosasaurs species (small size) for about 1 millions years. Pliosaurs suffered of competition from large Cardabiodontids and the disappearance of the last ichthyosaurs. Stop to believe that only marine reptiles dominated the seas during Mesozoic guys...  (Jun 5, 2012 | post #660)

Dinosaur

Could anything take on a Healthy Adult Megalodon 1 on 1 E...

Homo sapiens and his technological skills. Two Livyatan melvillei. Liopleurodon ferox at 5-7 m would be swallowed in two bites. Aramberri was around maybe around 15 m and was EVENTUALLY AN ADULT (Buchy). It was also more slender than Carcharocles.  (Jun 5, 2012 | post #40)

Dinosaur

Was megalodon an older version of the great white shark?

Carcharocles is considered as a stockier giant version of Carcharodon carcharias by scientists. By the way, Carcharodon carcharias and Carcharocles megalodon were contemporaries as Carcharodon appeared 10 millions years ago, evolving from the giant Mako Cosmopolitodus hastalis. Purdy has demonstrated that Carcharodon avoided regions frequented by Carcharocles chubutensis and megalodon.  (Jun 5, 2012 | post #12)

Dinosaur

Was megalodon an older version of the great white shark?

By no mean, Carcharocles was primitive. It was the last species of a 60 millions years old lineage which started with Otodus obliquus. It vanished during Early Pleistocene, 1,6 millions years ago and was specialized in hunting large warm-blooded marine mammals since 25 millions years. Cladoselache and Hybodus are primitive sharks, Carcharocles lineage was not. Update, update...  (Jun 5, 2012 | post #11)