The Therizinosaurus was potentially the stronger dinosaur, but it couldn't match the speeds and bite force of the Tarbosaurus. The speed and aggression of the Tarbosaurus land it in the winner's circle of this dinosaur battle.
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Battle Facts about Therizinosaurus vs. Tarbosaurus

Name | Therizinosaurus, scythe lizard | Tarbosaurus, alarming lizard |
Size | 33-40 feet long | 30-33 feet long |
Speed | 17 mph | 25 mph |
Offense | Large front claws, sharp beak | Razor-sharp teeth, impressive bite force |
Defense | Large, sturdy frame | High speeds |
Endurance and Behavior | Not very social, often traveled alone | Sometimes hunted in packs |
The showdown between the Therizinosaurus and the Tarbosaurus during the late Cretaceous period 70 million years ago likely happened in real life. These dinos were discovered in the Nemegt Formation in Mongolia. While the Tarbosaurus was aggressive and territorial, the Therizinosaurus was built like a tank but not as aggressive.
Which Dino Was Bigger, The Tarbosaurus or The Therizinosaurus?
The Tarbosaurs was the bigger dinosaur, but only by a hair. The Tarbosaurs could reach lengths up to 37 feet long, while the Therizinosaurus ranged between 30-33 feet long. However, while the Tarbosaurus was the bigger dinosaur, the Therizinosaurus was built like a tank.
The Therizinosaurus weighed 12,000 pounds, about the same as a T-Rex! The Tarbosaurus was longer, but it weighed around 8,000 pounds on average.
Were they similar?
The Tarbosaurus and the Therizinosaurus had a lot in common. They were both ferocious theropods with powerful bodies, aggressive natures, scary bite forces, and razor-sharp teeth.
Still, the Therizinosaurus had a slight edge over similar theropods of the time, like the Tyrannosaurus rex, Allosaurus, Carnotaurus, Ceratosaurus, and even the Giganotosaurus.
The Therizinosaurus didn’t have the small, puny arms like the T-Rex. Instead, it has small forearms with three long claws on each hand to defend itself and attack its prey.
Was Therizinosaurus Related To Tyrannosaurus?

While they look similar, the Therizinosaurus is unrelated to the mighty T-Rex. The Therizinosaurus belong to the family of dinos called Therizinosauridae, which include other dinosaurs like:
- Alxasaurus
- Beipiaosaurus
- Erlikosaurus
- Falcarius
The famous T-Rex belongs to the family of Tyrannosauridae or tyrannosaur, which includes dinosaurs like Bistahieversor, Daspletosaurus, and Teratophoneus. Therizinosaurus might not be related to the lizard king, but Tarbosaurus is!
What was the diet of the Therizinosaurus?
Surprisingly, the scary-looking Therizinosaurus was a vegetarian most of the time. This herbivore dinosaur used its long beak to snap the branches of trees. Its long neck allowed it to reach the branches of trees that smaller dinosaurs couldn’t reach. And while it ate plants most of the time, paleontologists believe it ate some small animals.
What Did The Tarbosaurus Eat?

As a cousin to the Lizard King, it’s no surprise that the mightly Tarbosaurs was a carnivore. It sometimes traveled in small packs, hunting down smaller dinosaurs for a quick meal. It used its speeds to outrun slower sauropods or theropods and chomped down with its bite force of about 10,000 pounds per square inch.
The Tarbosaurus bite force was so strong that it could chomp down on a car if cars existed in the late Cretaceous period.
Did Tarbosaurus Fight Therizinosaurus?
The Tarbosaurus fought the Therizinosaurus! The Tarbosaurus was the biggest threat to Therizinosaurus in the late Cretaceous period.
Both of these dinosaurs lived during the same time, around 70 million years ago, and were discovered in the Nemegt Formation in Mongolia. And while the Therizinosaurus had a few defensive abilities, its low speed and passive nature made it no match for the aggressive Tarbosaurus.
Who Would Win The Fight Between Tarbosaurus vs. Therizinosaurus
In real life, the Tarbosaurus could and has defeated the Therizinosaurus. When you pit carnivores (Tarbosaurs) against plant eaters (like Therizinosaurs), the winner is always the meat eater in the final battle. While the Therizinosaurus was almost as large as the Tarbosaurus, it couldn’t match its speed, bite force, and aggression.
As a lone wolf, the gentle Therizinosaurus didn’t stand a chance against the Tarbosaurus. The Tarbo threatened the Therizinosaurus and other dinosaurs of the late Cretaceous, like the Stegosaurus, Edmontosaurus, Spinosaurus, Triceratops, and Velociraptor. If you pit Tarbo against Rexy, the Tarbosaurus wouldn’t stand a chance!