There is a world somewhere between reality and fiction. Although ignored by many, it is very real and so are those living in it. This forum is about the natural world. Here, wild animals will be heard and respected. The forum offers a glimpse into an unknown world as well as a room with a view on the present and the future. Anyone able to speak on behalf of those living in the emerald forest and the deep blue sea is invited to join.
--- Peter Broekhuijsen ---

  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Smilodon populator

Venezuela epaiva Offline
Moderator
*****
Moderators
#31
( This post was last modified: 11-13-2018, 04:20 AM by epaiva )

Taken from the book Sabertooth (Mauricio Anton)

*This image is copyright of its original author
4 users Like epaiva's post
Reply

Canada Wolverine Away
Regular Member
***
#32

(11-12-2018, 03:27 PM)P.T.Sondaica Wrote: @wolfrine riddle

yes my friend - riddle
Reply

China Smilodon-Rex Offline
Regular Member
***
#33


*This image is copyright of its original author

Paleobiology of sabretooth cat Smilodon populator in the Pampean Region (Buenos Aires Province, Argentina) around the Last Glacial Maximum: Insights from carbon and nitrogen stable isotopes in bone collagen
Highlights



The sabretooth cat Smilodon populator was the largest felid in South America.

First δ13C and δ15N for Smilodon from 25 to 10 kyr BP in the Pampas

Predator of large prey from open landscape (Macrauchenia, giant ground sloths)

Smilodon was possibly competing with the large canid Protocyon but not with the jaguar.

Holocene climate change may have contributed to its extinction.


Abstract

The sabretooth cat Smilodon populator was the largest felid in South America. It appears in the fossil record in the Early Pleistocene, as an immigrant from North America, and becomes extinct around the Pleistocene–Holocene boundary. The carbon and nitrogen stable isotopic values of collagen were measured for skeletal remains from Smilodon specimens ranging in age from 25 to 10 kyr BP, for the first time in thePampas region of Argentina. By comparison with similar values obtained on co-eval predators such as Protocyon (large canid) and Panthera onca (jaguar) and a range of potential prey, such as giant ground sloths, glyptodontids, MacraucheniaToxodon, equids, cervids, and rodents, it could be established thatSmilodon consumed essentially large prey from open landscape, such as Macrauchenia and giant ground sloths during the last 15,000 years of the Late Pleistocene in the Pampa region. It was possibly competing with the large canidProtocyon but the jaguar was apparently feeding on smaller size prey. A more humid climate at the beginning of the Holocenemight have been unfavorable to this large predator and could have contributed to its extinction. These results also provide an important insight to understand the ecological processesinvolved in the Great American Biotic Interchange.


*This image is copyright of its original author

https://www.sciencedirect.com/science/article/pii/S0031018216000912
The research link
     Smilodon populator was a giant killer that usually hunted oversize preys like macrauchenia and megatherium etc, while jaguar in Pleistocene South America may more interested in horse than nowadays, protocyan was the main competitor for Smilodon populator but not jaguar
4 users Like Smilodon-Rex's post
Reply

China Smilodon-Rex Offline
Regular Member
***
#34


*This image is copyright of its original author

Smilodon populator skeleton image

*This image is copyright of its original author


*This image is copyright of its original author


*This image is copyright of its original author

The muscle comparison, as we can see that Smilodon populator was a massively robust carnivore
5 users Like Smilodon-Rex's post
Reply

Indonesia P.T.Sondaica Offline
Regular Member
***
#35

Who more robust smilodon vs bear
2 users Like P.T.Sondaica's post
Reply

India brotherbear Offline
Grizzly Enthusiast
#36
( This post was last modified: 12-10-2018, 09:35 PM by brotherbear )

(12-10-2018, 07:02 PM)P.T.Sondaica Wrote: Who more robust smilodon vs bear

Freak Felids post #563 by tigerluver
 
RE: 312 kg figure. There are a handful of popular data tables people cite when it comes to North American brown & grizzly bear morphometry including weight. IMO, a comprehensive review of these data tables are called for hence the creation of the following thread. Some of the corresponding data have already been posted (see Extant/North America section) while more will be forthcoming. 

Getting back to Kodiak brown bears, from the Kodiak National Wildlife Refuge Center, the figure of 600-1,400 lbs for male bears is easier understood. The lower range numbers correspond to young adult male Kodiak bears while the higher numbers correspond to the older mature bears. Regrettably, the data for older "trophy" size bears is thin (in my experience, this is true for many bear populations) where such data can be found would be from hunting literature sources but outside of skull measurements; finding out other morphometrical info (e.g, weight, chest girth, body length, paw size, etc) is challenging. Nonetheless, after reviewing a lot of the technical literature, the quote of the "half-ton" Kodiak bear are common is accurate. Anecdotal observation, when I am watching tourist video (e.g., Youtube) or viewing photograph of mature Kodiak brown bears (less online material) and mature SW Peninsula brown bears (a lot more online sources), I see a lot of males pushing and exceeding half-ton weight & size.
Smilodon's femur is proportionately much larger than its tibia compared to all pantherines by a long ways. Its humerus is also proportionately larger than its ulna, a ratio only matched by the very robust leopard and jaguar. The longer proximal bones is indicative of the fact that Smilodon is indeed much more heavily built than the lion and the tiger, and somewhat more heavyset than the leopard and jaguar.

From this, maybe the best route of Smilodon reconstruction would be one width dimensions and/or the length dimension of the bone, either allometrically or isometrically compared to only jaguars and leopards. The type of bone being used would also have to be taken into account to predict the accuracy of the estimation. Forelimb estimates may be overestimates somewhat, and vice versa for hindlimb estimates.
1 user Likes brotherbear's post
Reply

India brotherbear Offline
Grizzly Enthusiast
#37

Grizzly with Smilodon fatalis.
                                           
*This image is copyright of its original author
4 users Like brotherbear's post
Reply

Indonesia P.T.Sondaica Offline
Regular Member
***
#38

@brotherbear can u share link comparison smilodon vs bear i cannot see u pic
1 user Likes P.T.Sondaica's post
Reply

India brotherbear Offline
Grizzly Enthusiast
#39

(12-11-2018, 10:51 AM)P.T.Sondaica Wrote: @brotherbear can u share link comparison smilodon vs bear i cannot see u pic

https://www.facebook.com/toby.norman.988...1544522551
1 user Likes brotherbear's post
Reply

Indonesia P.T.Sondaica Offline
Regular Member
***
#40

Smilodon arm more robust than bear
1 user Likes P.T.Sondaica's post
Reply

India brotherbear Offline
Grizzly Enthusiast
#41

(12-11-2018, 04:23 PM)P.T.Sondaica Wrote: Smilodon arm more robust than bear

The saber-toothed cats had to have great strength to pull down huge prey animals and hold them long enough to apply the coup de gras to its throat.
1 user Likes brotherbear's post
Reply

Venezuela epaiva Offline
Moderator
*****
Moderators
#42
( This post was last modified: 02-20-2019, 05:57 PM by epaiva )

Comparing Smilodon populator with Smilodon fatalis
Book The Big Cats and their fossil relatives

*This image is copyright of its original author
1 user Likes epaiva's post
Reply

smedz Offline
Regular Member
***
#43

From the sound of it, this animal was a beast. One question many have asked is whether this animal was social or not.  Well let's look at the situation shall we? 

Now just why in the world would Smilodon Populator be social, well we must look at why Lions today are social. Lions today live in open grasslands, and in grasslands, there are some advantages to being in a group. First off, studies in Etosha National Park show that Lions can overcome the problem of hunting in not much cover by coordinating their activities (Anton). In grasslands, they can face fierce competition, Lions have to compete with spotted hyenas, which live in clans, and a lioness on her own doesn't have a chance against a clan of them, and kills are much easily seen at a long distance. So being in a group helps the lionesses keep them at bay until the males show up. So as we can see, their are advantages for cats the size of Lions or bigger in grasslands to be social. Smilodon Populator was a good deal larger than a lion, and it lived in the open grasslands of South America. From that, we can guess that Smilodon Populator was social, but not in the same way as a lion. Male Lions are bigger then females, while both genders of Smilodon were about the same size, so their social structure wasn't like that of Lions unlike what Walking With Beasts would have you believe. However, wolves of both genders are of similar size, because of this, we can guess that if Smilodon were social, the social system was similar to that of wild canids (Anton). 

Overall, I do believe this animal was a social creature, and the source for this is from the works of Mauricio Anton.
3 users Like smedz's post
Reply

Venezuela epaiva Offline
Moderator
*****
Moderators
#44
( This post was last modified: 02-21-2019, 09:20 PM by epaiva )

Size comparison of Smilodon populator with a Smilodon fatalis from Florida
Book The Big Cats and their fossil relatives

*This image is copyright of its original author
2 users Like epaiva's post
Reply

smedz Offline
Regular Member
***
#45

Does anyone know if Smilodon Populator coexisted with American Lions? Did the huge bear Arctotherium coexist with Smilodon Populator, or did it die out before it come along?
2 users Like smedz's post
Reply






Users browsing this thread:
4 Guest(s)

About Us
Go Social     Subscribe  

Welcome to WILDFACT forum, a website that focuses on sharing the joy that wildlife has on offer. We welcome all wildlife lovers to join us in sharing that joy. As a member you can share your research, knowledge and experience on animals with the community.
wildfact.com is intended to serve as an online resource for wildlife lovers of all skill levels from beginners to professionals and from all fields that belong to wildlife anyhow. Our focus area is wild animals from all over world. Content generated here will help showcase the work of wildlife experts and lovers to the world. We believe by the help of your informative article and content we will succeed to educate the world, how these beautiful animals are important to survival of all man kind.
Many thanks for visiting wildfact.com. We hope you will keep visiting wildfact regularly and will refer other members who have passion for wildlife.

Forum software by © MyBB