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Argentinosaurus huinculensis
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Mapusaurus roseae (Pack of 7)
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Argentinosaurus huinculensis v Mapusaurus roseae (Pack of 7)
#1
Argentinosaurus huinculensis
Argentinosaurus is a genus of titanosaur sauropod dinosaur first discovered by Guillermo Heredia in Argentina. The generic name refers to the country in which it was discovered. The dinosaur lived on the then-island continent of South America somewhere between 97 and 94 million years ago, during the Late Cretaceous Epoch. Not much of Argentinosaurus has been recovered. The holotype included three anterior dorsal vertebrae, three posterior dorsal vertebrae, first to fifth sacrum vertebrae (only the ventral sector of the vertebral bodies), most of the sacral ribs of the right side, great part of a fragmented dorsal rib, and the right tibia. One vertebra had a length of 1.59 meters (spine to the ventral border) and the tibia was about 155 centimeters (58 inches). Besides these, an incomplete femur (MLP-DP 46-VIII-21-3) is assigned to Argentinosaurus; this incomplete femur shaft is about 1.18 meters. The proportions of these bones and comparisons with other sauropod relatives allow paleontologists to estimate the size of the animal. An early reconstruction by Gregory S. Paul estimated Argentinosaurus at between 30–35 metres (98–115 ft) in length and with a weight of up to 80–100 tonnes (88–110 short tons). Other estimates have compared the fragmentary material to relatively complete titanosaurs to help estimate the size of Argentinosaurus. In 2006 Carpenter used the more complete Saltasaurus as a guide and estimated Argentinosaurus at 30 metres (98 ft) in length.[5] An unpublished estimate used published reconstructions of Saltasaurus, Opisthocoelicaudia, and Rapetosaurus as guides and gave shorter length estimates of between 22–26 metres (72–85 ft). Weight estimates are less common, but Mazzetta et al. (2004) provide a range of 60–88 tonnes (66–97 short tons), and consider 73 tonnes (80 short tons) to be the most likely, making it the heaviest sauropod known from good material.

[Image: e0010684_484743e5a2d79.jpg]

Mapusaurus roseae (Pack of 7)
Mapusaurus ('earth lizard') was a giant carnosaurian dinosaur from the early Late Cretaceous (Cenomanian stage) of what is now Argentina. It was similar in size to its close relative Giganotosaurus, with the largest known individuals estimated as over 12.6 metres (41 ft) in length* and weight estimates of approximately 3 metric tons to 5.5 metric tons. Mapusaurus was excavated between 1997 and 2001, by the Argentinian-Canadian Dinosaur Project, from an exposure of the Huincul Formation (Rio Limay Group, Cenomanian) at Canadon de Gato. It was described and named by paleontologists Rodolfo Coria and Phil Currie in 2006. The fossil remains of Mapusaurus were discovered in a bone bed containing at least seven individuals of various growth stages. Coria and Currie speculated that this may represent a long term, possibly coincidental accumulation of carcasses (some sort of predator trap) and may provide clues about Mapusaurus behavior. Other known theropod bone beds include the Allosaurus-dominated Cleveland Lloyd Dinosaur Quarry of Utah, an Albertosaurus bone bed from Alberta and a Daspletosaurus bone bed from Montana.

[Image: khung-long-mapusaurus-5_orig.jpg]



(06-07-2019, 08:57 AM)TurkeyGod Wrote: This should be an interesting one
4 tyrannosaurus rexes vs Argentinosaurus

Well I dont know if there is evidence to support Pack hunting/Fighting with T. rex, but some have suggested there is for Mapusaurus. This thread worked well on the archive board: Argentinosaurus huinculensis v Mapusaurus roseae (Pack of 7)
[Image: wildcat10-CougarHuntingDeer.jpg]
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#2
I think the mapusaurus pack will win. The Argentinosaurus, being so slow, would have trouble catching and killing so many faster, more mobile, theropods and would eventually succumb to the wounds.
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#3
I suppose size is Argentinosaurus's greatest defence. That tail too, looks like it could do some damage to the pack!
[Image: wildcat10-CougarHuntingDeer.jpg]
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