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SameerPrehistorica — South American megafauna
#american #megafauna #south #sizecomparison
Published: 2017-01-07 09:12:24 +0000 UTC; Views: 22350; Favourites: 177; Downloads: 127
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Description
Giganotosaurus carolinii, Argyrosaurus superbus,Titanoboa cerrejonensis, Irritator challengeri, Purussaurus brasiliensis, Mourasuchus amazonensis, Mapusaurus roseae, Oxalaia quilombensis, Notocolossus gonzalezparejasi, Argentinosaurus huinculensis, Puertasaurus reuili, Antarctosaurus giganteus, Saltasaurus loricatus, Amargasaurus cazaui , Chubutophis grandis, Gryposuchus croizati, Prionosuchus plummeri, Tyrannotitan chubutensis, Dreadnoughtus schrani, Futalognkosaurus dukei, Notiomastodon platensis, Madtsoia bai, Stupendemys geographicus, Megatherium americanum, Cuvieronius hyodon, Doedicurus clavicaudatus, Arctotherium angustidens, Josephoartigasia monesi, Kelenken guillermoi, Smilodon populator, Phorusrhacos longissimus, Brontornis burmeisteri, Black caiman, Green anaconda, Brazilian tapir, Giant Ant eater, Spectacled bear, Jaguar, Maned wolf, Capybara and Greater rhea.Flying Animals : Pelagornis sandersi and Argentavis magnificens.
The largest land animal alive today in South America is the Brazilian tapir.
South America is simply packed with giants. The largest species of animals from South America as seen in the image :
Largest amphibian - Prionosuchus plummeri
Largest bear / largest terrestrial mammalian carnivore - Arctotherium angustidens
Largest crocodilian - Purussaurus braasiliensis (It can be a debate when it comes to the largest crocodilian ever. May be purussaurus is the largest
crocodilian.)
Largest feline - Smilodon populator
Largest flying bird - Pelagornis sandersi
Largest rodent - Josephoartigasia monesi
Largest living rodent - Capybara
Largest snake - Titanoboa cerrejonensis
Largest living snake - Green anaconda
Largest turtle - Stupendemys geographicus
Largest xenarthran - Megatherium americanum
Some of the massive dinosaurs are known from South America. The 'largest dinosaur that ever existed' is something which may never be settled since they are known from very fragmentary materials. Possibly the largest dinosaur might be known in the future. For now, the most famous largest dinosaur is Argentinosaurus.
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Comments: 34
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They're actually a really bad acting troupe, but who's gonna tell them that ??
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it's sad that the all gigantic south american animals are extinct now,but hey,at least it's south america's fauna still really diversed
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You know what's weird though? I don't see macrauchenia. It was a pretty big animal too, you know.
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I can imagine a future descendant of the farm llamas being huge half sauropod and half indricothere-shaped grassland mammals, travelling together in herds eating from big trees. That idea I came up with was influenced by speculative evolution. You should look it up. Dougal Dixon's "After Man: A Zoology of the Future" and the 2002 documentary mini series, "The Future is Wild" come to mind.
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Thanks. It's based on Scott Hartman's skeletal.
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It's Chubut, Toast is not a real name but a misinterpretation of the exhibit (it was supposed to be 'Toast the Titanosaur' as in 'let's toast the titanosaur'). It's a common one, don't worry.
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Oh another one is the Rio La Plata bones, which Nima Sassani estimated to belong to a 70+ tonne sauropod. This chart could be even more grandiose.
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I wonder what was going on there. And undoubtedly there's more waiting to be discovered.
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Ah that definitely makes sense. Of course there were other giant sauropods elsewhere, but it must be why Argentina suited them so well. China was good for them as well, North America too.
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What do you think the current record holders are?
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Yes indeed it was. Unlike him, I do believe in giant Apatosaurus and Barosaurus though lol. Don't forget the giant Mamechisaurus and the other ones like Yunmenlong. I also know he's going to do a side chart at some point with all the biggest ones together.
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Yeah, I understand your scepticism regarding Barosaurus, though I do gravitate towards the SVPOW estimate. And while they are lankier than other sauropods, the "normal" or AMNH Barosaurus was still probably 12.5 tonnes (even the lowest estimate is 11.9 from GSP) and the BYU 9024 is exactly twice as big as the AMNH vertebrae. So it's definitely a factor.
I think Nima's estimate for Sauro is too low as it doesn't have enough soft tissue, so Sauroposeidon does seem to be around 60 tonnes or so. French Monster is probably around 70 tonnes assuming similar proportions.
Mamechisaurus were quite gracile but not as much and so 60-70 tonnes seems most likely avoids shrink wrapping.
Don't forget some Euhelopods like Daxiatitan and the even larger Yunmenlong. Bricksmashtv (a friend of Paleoking) estimated the former at 60-65 tonnes and the latter at 70-75 tonnes. And they would have had Erketu like necks, so they'd be a very interesting sight.
Don't forget Chubut for the larger than Argentina camp 
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Lol.
1- well, these are hte estimates I've seen from those who study the bones, so they seem ok to me.
2- The main French Monster Femur is 2.2m, and there is a larger fragmentary bone which may indicate a femur surpassing 2.4m (or it could be a 1.5m tibia which would also indicate a 2.4+m femur) according to Nima's blog and its sources. Nima used to estimate Sauroposeidon's femur at just under 2.1m though that may change with the Chubutisaur reconstruction.
3- whats this about Diplodocoidea? XD.
4- agreed here.
5- I tend to use higher weight estimates within reason as to avoid overly thin frames, which is not how modern animals function, so I figure extinct ones were no different.
6- Sorry about that dude 
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Lol. Yeah it's incredible how many there were. And he's still got Australia, Africa and North America to do!
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You could have added Macrauchenia and Toxodon to this image.
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The only continent where theropods still ruled as the alpha predator until a mere 2 million years ago. Also I love how Prionosuchus is laying on top of the gharial.
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It's amazing how the largest animals of modern day here are only slightly larger than the sauropod's heads!
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Two more sauropods are the Chubut Monster (the largest specimen is bigger than Argentinosaurus or Alamosaurus, probably rivalling Puertosaurus) and the Gigante de Rio Negro, which is probably similar in size to Paralititan or Antarctosaurus.
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Amazing work here !
Even giant Theropods like Oxalaia getting Dwarf'ed by their Sauropod Overlords !
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Thank you. Come on, any giant theropod would look bigger for us but not for some gigantic sauropods.
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Very Welcome; Sauropods Rule the Earth ! ....Once
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I like how the largest living animal dwarfs beneath predators, that could eat it in a single bite.
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very impressive ! and sure there are still a lot of species to discover
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