This 20 August 2019 video says about itself:
Tyrannosaur Species Size Comparison
Tyrannosaurus is a genus of coelurosaurian theropod dinosaur. The species Tyrannosaurus rex often called T. rex or colloquially T-Rex, is one of the most well-represented of the large theropods. Tyrannosaurus lived throughout what is now western North America, on what was then an island continent known as Laramidia. Tyrannosaurus had a much wider range than other tyrannosaurids. Fossils are found in a variety of rock formations dating to the Maastrichtian age of the upper Cretaceous Period, 68 to 66 million years ago. It was the last known member of the tyrannosaurids, and among the last non-avian dinosaurs to exist before the Cretaceous–Paleogene extinction event.
Another video used to say about itself:
Tyrannosaur family species comparison
13 August 2018
Welcome to the second round of the new dinosaur comparison videos. In this comparison video, we shall compare the different Tyrannosaurus family species or also known as Tyrannosaurids.
These dinosaurs have a strong jaw and are among the largest terrestrial predators to have existed in the world.
Tyrannosaurus rex, T-rex, is one of the largest land predators to have ever existed while Tarbosaurus is also on the top ten list along with others like Albertosaurus, Gorgosaurus, Daspletosaurus, Zhuchengtyrannus, Qianzhousaurus etc.
There are 11 tyrannosaurids that have been confirmed from fossils and these tyrannosaurus species differ in size and comparison so much that the smallest of them weighs less than one tonne and the largest weighs more than 10 tonnes.
The smallest tyrannosaurid measures only 5-6 meters in length while the largest measures more than 12-13 meters in length. These tyrannosaurus species all have one thing in common, the noticeable strong and rounded skull.
In this video of the Tyrannosaurus family species comparison, we shall take a more detailed look at the 11 tyrannosaurids, their size, where and when they existed.
So enjoy this video on Tyrannosaurus family species comparison.