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Freak Felids - A Discussion of History's Largest Felines

India Sanju Offline
Indian
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(01-26-2019, 01:01 AM)GrizzlyClaws Wrote:
(01-25-2019, 05:01 PM)Sanju Wrote:
(12-25-2018, 08:39 AM)tigerluver Wrote: This month a paper describing cat species from a cenote in Mexico described a new species termed Panthera balamoides. The paper is attached.


*This image is copyright of its original author


What does everyone think? Distal humeri have a lot of intraspecific varation, and the authors acknowledge the issue, but still believe the new fossil is from a unique species. Could a third, previously undiscovered species exist alongside at least three other cats (P. atrox, P. onca, Smilodon) or is it more likely this new specimen is just another P. onca or P. atrox found in the same locality?

I saw this few days back in the internet and I believe that a third unique cat lived in America. BTW in comparison between javan leopard and cougar, the humeri of leopard is larger than puma though javan leopards are not that big than others subs of leopards...
https://www.tandfonline.com/doi/abs/10.1080/08912963.2018.1556649?journalCode=ghbi20

It would intriguing if the leopard group also managed to migrate to the prehistoric America, which would make them as widespread as the lions in the prehistoric era.

In the modern era, the leopard is by far the most widespread cat.

I think even leopard made up to that continent, humeri bones are very huge even comparison with the tiger too! So with that type of competition around, I suspect it happened. It can be also a cat separated from other lineage and evolved solely and uniquely specialized to the American environment.
When Need turns to Greed, our Extinction happens, lol.
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China Smilodon-Rex Offline
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*This image is copyright of its original author

A Panthera leo atrox (American lion) skull from the wonderful Fossil Collection @MuseumofNature . This skull is from the Yukon and dated at 25,000 years.
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China Smilodon-Rex Offline
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(12-25-2018, 08:39 AM)tigerluver Wrote: This month a paper describing cat species from a cenote in Mexico described a new species termed Panthera balamoides. The paper is attached.


*This image is copyright of its original author


What does everyone think? Distal humeri have a lot of intraspecific varation, and the authors acknowledge the issue, but still believe the new fossil is from a unique species. Could a third, previously undiscovered species exist alongside at least three other cats (P. atrox, P. onca, Smilodon) or is it more likely this new specimen is just another P. onca or P. atrox found in the same locality?
 Well, it may not a feline, but a bear, because of the femur type, check these pictures
 
*This image is copyright of its original author

polar bear femur

*This image is copyright of its original author

american black bear skeleton

*This image is copyright of its original author

andean bear skeleton

  The "Panthera balamodies'' may not a feline but more likely to be a American black bear or andean bear
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China Smilodon-Rex Offline
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*This image is copyright of its original author

@GrizzlyClaws , @tigerluver , @brotherbear , Here is the true size comparison, from left to right are Amur tiger(Panthera tigers alatica), American lion(Panthera atrox) and Smilodon populator, both of them are the biggest  individual size.
 The Amur tiger's maximum size could up to 125cm tall and 350kg weight in history, while the American lion's maximum size could up to 135cm tall and 400kg+,Smilodon pupulator's maximum size could up to 125cm tall and 400kg+,based on the picture
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United States tigerluver Online
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( This post was last modified: 02-10-2019, 10:36 PM by tigerluver )

(02-04-2019, 10:11 AM)Smilodon-Rex Wrote:
(12-25-2018, 08:39 AM)tigerluver Wrote: This month a paper describing cat species from a cenote in Mexico described a new species termed Panthera balamoides. The paper is attached.


*This image is copyright of its original author


What does everyone think? Distal humeri have a lot of intraspecific varation, and the authors acknowledge the issue, but still believe the new fossil is from a unique species. Could a third, previously undiscovered species exist alongside at least three other cats (P. atrox, P. onca, Smilodon) or is it more likely this new specimen is just another P. onca or P. atrox found in the same locality?
 Well, it may not a feline, but a bear, because of the femur type, check these pictures
 
*This image is copyright of its original author

polar bear femur

*This image is copyright of its original author

american black bear skeleton

*This image is copyright of its original author

andean bear skeleton

  The "Panthera balamodies'' may not a feline but more likely to be a American black bear or andean bear


Just a correction, the P. balamoides fossil is a distal humerus, not a femur. Nonetheless good eye regarding the possibility of the specimen being from a completely different genus.
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United States smedz Offline
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I went ahead and made a thread dedicated to the Ngandong tiger, so if anyone here has any interesting info, you can post it there.
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