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Tyrannotitan v Oxalaia
Topic Started: Aug 26 2012, 12:04 AM (5,342 Views)
Wolf Eagle
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M E G A P H Y S E T E R
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Tyrannotitan chubutensis
Tyrannotitan is a genus of huge bipedal carnivorous dinosaur of the carcharodontosaurid family from the Aptian stage of the early Cretaceous period, discovered in Argentina. It is closely related to other giant predators like Giganotosaurus and Carcharodontosaurus. Its fearsome appearance is reflected in the meaning of its name, "Tyrant titan". Tyrannotitan chubutensis was described by Fernando E. Novas, Silvina de Valais, Pat Vickers-Rich, and Tom Rich in 2005. The fossils were found at La Juanita Farm, 28 kilometres (17 mi) northeast of Paso de Indios, Chubut Province, Argentina. They are believed to have been from the Cerro Castaño Member, Cerro Barcino Formation (Aptian stage) around 112.2 - 121 million years ago. The length of the animal is estimated to be on average at 12.2 metres (40 ft).
Little information has yet been released about Tyrannotitan. Only a very brief description of the fossils has been published (four pages). The teeth are less blade-like than those of its kin, and possess odd, lumpy denticles (there is a barely distinguishable groove in the center, dividing each denticle into two parts). This site shows that Tyrannotitan could have reached about 13 metres and weigh up to around 7 tonnes.

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Oxalaia quilombensis
Oxalaia (a reference to the African deity Oxalá) is a genus of carnivorous theropod. It is a spinosaurine spinosaurid which lived during the late Cretaceous (early Cenomanian stage, about 98 mya) in what is now Brazil. Oxalaia is known from the holotype MN 6117-V, fused premaxillae of a very large individual and from the referred fragment MN 6119-V, an isolated and incomplete left maxilla, which were found on Cajual Island, Maranhão State of northeastern Brazil. Fossils of Oxalaia were recovered in 2004 from the Laje do Coringa locality of the Alcântara Formation, part of the Itapecuru Group of the São Luís Basin. Besides these bone fragments, numerous spinosaurid teeth had earlier been reported from the site. The genus was named by Alexander Wilhelm Armin Kellner, Sergio A.K. Azevedeo, Elaine B. Machado, Luciana B. Carvalho and Deise D.R. Henriques in 2011 and the type species is Oxalaia quilombensis. The specific name quilombensis refers to the quilombo settlements, such as on Cajual Island, which were founded by escaped slaves. Estimates suggest that it was 12 to 14 metres (39 to 46 ft) in length and 5 to 7 tonnes (5.5 to 7.7 short tons) in weight —- it is the largest theropod known from Brazil and the eighth officially named species of theropod from Brazil.

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Taipan
 
Tyrannotitan v Oxalaia.

Edited by Wolf Eagle, Aug 26 2012, 12:08 AM.
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Carcharadon
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Shark Toothed Reptile
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Tyrannotitan should take this in my opinion
It has a deadlier bite and is more heavily built
But Oxalaia's size advantage makes it a difficult task
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Megafelis Fatalis
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Tyrannotitan wins IMO
Bite - Bulk - Weight
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Jinfengopteryx
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Aspiring paleontologist, science enthusiast and armchair speculative fiction/evolution writer
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Tyrannotitan, they are pretty much at the same size, but Tyrannotitan has the razor sharp teeth and gape to win this battle.
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Wolf Eagle
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I think the Tyrannotitan would win here. It's has the more powerful bite.
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SpinoInWonderland
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A 7-tonne Tyrannotitan wins more often than not, the 5-tonne ones lose more often though

Oxalaia vs 7-tonne Tyrannotitan = 60/40 in favor of Tyrannotitan
Oxalaia vs 5-tonne Tyrannotitan = 60/40 in favor of Oxalaia
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Fragillimus335
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Tyrannotitan slightly, 65%
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FireCrown
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I say tyrannotitan i could picture it in my head running but Oxalaia ( Spino ) i can't
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theropod
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what 7 tonne tyrannotitan? that´s far too much for a 12,2m animal! imo it would be very close. Assuming it´s similar to spinosaurus, oxalaia would have a serious bite force.

similar to Tarbosaurus vs oxalaia imo, but Tyrannotitan would fare a bit better due to it´s better meat slicing adaptions and wider gape

EDIT:
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Edited by theropod, Aug 30 2012, 07:45 PM.
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SpinoInWonderland
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theropod
Aug 29 2012, 12:48 AM
what 7 tonne tyrannotitan?
It's from here: http://palaeos.com/vertebrates/theropoda/carcharodontosaurinae.html#Tyrannotitan

Quote:
 
Tyrannotitan chubutensis Novas et al., 2005

Range: Aptian of Argentina

Phylogeny: Carcharodontosaurinae : (Carcharodontosaurus + Giganotosaurini) + *

Size: length 13 meters. weight 7 tonnes

Comments: huge carcharodontosaur, closely related to but somewhat more primitive that Giganotosaurus and Carcharodontosaurus. Rather tall vertebral spines over the tail MAK120302

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theropod
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ahh, that´s where the myth of Tyrannotitan being larger than Mapusarurus came from! A source misunderstanding the wikipage...pathetic
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Teratophoneus
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Tyrannotitan win. It was larger, bulkier and more suitable to the fight.
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Teratophoneus
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My scale. I don't found skeletals, so I go with silouhettes.
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Godzillasaurus
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Tyrannotitan wins
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retic
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tyrannotitan wins. it has better weaponry and is more robust.
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