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Tyrannosaurus rex
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  *This image is copyright of its original author Sue and Scotty the largest theropod specimens currently known to science   *This image is copyright of its original author Scotty the T-rex https://www.deviantart.com/robertfabiani...-540202770 
Tyrannosaurus rex (Sue) with the largest specimen for Mapusaurus
*This image is copyright of its original author
*This image is copyright of its original author Largest Spinosaurus specimen with Tyrannosaurus rex (Sue)
*This image is copyright of its original author Spinosaurus with Tyrannosaurus (Sue) *This image is copyright of its original author *This image is copyright of its original author
 (11-15-2019, 05:17 AM)JurassicDD Wrote: This photo is very eloquent. Is it really, as you say, the largest known Spinososaurus close to Sue ? No use to be an expert to see that the T-rex's bones (femur, fibula, metatarsus and so on) are far more massive than the spinosaurus's ones. And I don't speak about the skulls. Spinosaurus's frame is thiner by far... Seeing this photo I cannot explain how the spinosaurus could be depicted into some expert's spirit (Horner...) as a mega suprapredator among dinosaurs.
That is indeed the largest Spinosaurus specimen msnm v4047 compared to Sue. While Spinosaurus is estimated to be the longest theropod its, not the most massive Tyrannosaurus carries a lot more mass around than Spinosaurus. Spinosaurus specimen msnm v 4047 is estimated to be around 15 meters long and around 7.6 tons at the most. While Tyrannosaurus rex specimens such as Sue and Scotty are both estimated to mass over 9 tons and when you compare their bones together you can clearly see why.
A 12 meter long Spinosaurus is estimated to mass 5000 kg less than a 12-meter long T.rex with the latest data. So it's pretty safe to say at the moment that Tyrannosaurus is larger than Spinosaurus while Spinosaurus is the longer animal. Spinosaurus was definitely an apex predator just not the way it was portrayed back in Jurassic park 3. It just did not have the right tools to be a big game hunter on the land. So it stayed around or in the water hunting down fish and other forms of aquatic life. Here is the most current size comparison by Franoys and you can see how all the big theropods stack up (Scotty the T.rex is not yet included)  *This image is copyright of its original author
It can do i guess my post was regarding Tyrannosaurus though it is not like what I have posted it completely off-topic.
Very impressive t-rex's skeleton from below:
" Cast of "Stan" at Manchester Museum. Stan is the nickname given to a fossil found in Hell Creek Formation, South Dakota, close to Buffalo in 1987 by Stan Sacrison, who also discovered another Tyrannosaurus specimen nicknamed "Duffy". The original fossils are now housed at Black Hills Institute of Geological Research, Inc. center. It is a well known specimen, and one of the most complete with 199 bones recovered. "
" If you want to know the secret behind the success of Tyrannosaurus rex and its meat-eating dinosaur cousins, look no further than their teeth.
Scientists in 2015 unveiled a comprehensive analysis of the teeth of the group of carnivorous dinosaurs called theropods, detailing a unique serrated structure that let them chomp efficiently through the flesh and bones of large prey. Theropods included the largest land predators in Earth’s history. They first appeared about 200 million years ago and were the dominant terrestrial meat-eaters until the age of dinosaurs ended about 65 million years ago. University of Toronto Mississauga paleontologist Kirstin Brink said fossil evidence showed that T. rex’s teeth could crush bone. Its teeth have been found embedded in the bones of its prey and chunks of bone appear in its fossilized dung. “But the serrations were most efficient for piercing flesh and gripping it while ripping off a chunk of meat, called the ‘puncture and pull’ feeding style,” Brink said."
Tyrannosaurus specimens with there ages included.
 *This image is copyright of its original author
" Title: When your Mommy is T-Rex ". I see the mother croc's behaviour has been well watched and studied !
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