Siats meekerorum vs. Giganotosaurus carolinii

[dinosauria101]

Siats meekerorum

cdn.sci-news.com/images/2013/11/image_1567-Siats-meekerorum.jpg

Order: Theropoda
Family: Tyrannosauroidea
Length: ??
Mass: ~4 tonnes(?) for known specimen based on interpolated femur length estimate (Zanno & Makovicky, 2013)
Diet: Other dinosaurs
Age and Location: Mid Cretaceous, 98 million years ago, Utah, United States
Killing apparatus: Slicing jaws, manual claws, pedal claws (based on relatives)
One of the largest of North American carnivorous dinosaurs. Was originally thought to be a carnosaur

Giganotosaurus carolinii

img00.deviantart.net/6d9d/i/2012/144/e/e/giganotosaurus_carolinii_by_teratophoneus-d50xwgw.jpg

Order: Theropoda
Family: Carcharodontosauridae
Length: 12.4-13.2 meters
Mass: 7-8.2 tonnes
Diet: Other dinosaurs
Age and Location: Mid Cretaceous period, 95 million years ago, Argentina
Killing apparatus: Slicing jaws, manual claws, pedal claws (based on relatives)
Potentially the largest known meat eating dinosaur. Only known from 2 specimens, MUCPv-Ch1 and MUCPv-95

[6f5e4d]

Giganotosaurus is an obvious victor here, it would easily trounce Siats.

[dinosauria101]

You sure about that? I don't think this would be a stomp for Giga.
While I do agree it would win, surely Siats has a chance too - it gets close in size and has vicious weapons of its own

[Ceratodromeus]

"Juvenile" is such a loose term. At 10 meters in length that thing was probably most of the way grown. 6 tonnes seems really high to me too.

[dinosauria101]

Maybe not JUVENILE, but it does have some growing left.

As for the mass, 6 tonnes isn't necessarily off the table - scaling from relatives gives close results. If we scaled from Megaraptor (1-2 tonnes, 8 meters), it would be ~3.6-7.2 tonnes, and this is scaling up from a much smaller relative who almost certainly would be more gracile. 6 tonnes is deffo on the table here.

[creature386]

Regardless of how much growing it has left, it is always problematic to use fabricated adult sizes outside of the fantasy section. For this thread, it's best to stick to the specimens we know.

[dinosauria101]

Easy win for Giganotosaurus then, until we find more bones for Siats.

Someone on the Saurian discord server says 11 meters is the adult. I don't know if they're referring to the adult of the 9-10.4 meter estimates.