
Tyrannosaurus Rex

Stegosaurus
Ecosystem
Forested plains, floodplains
Woodlands and floodplains
Diet
Carnivore
Herbivore
Time Period
Late Cretaceous
Late Jurassic
Continent
North America
North America
Timeline of Discovery
1902: Tyrannosaurus Rex
Discovered by: Barnum Brown
Location: Hell Creek Formation, Montana, USA
Key Fact: The first T. Rex fossil was a partial skeleton, including the skull and vertebrae. It was named by Henry Fairfield Osborn in 1905.
1877: Stegosaurus
Discovered by: Othniel Charles Marsh
Location: Morrison Formation, USA
Key Fact: Stegosaurus was one of the first dinosaurs discovered in North America. Its distinctive plates and spiked tail made it one of the most recognizable dinosaurs.
1990: T. Rex "Sue"
Discovered by: Sue Hendrickson
Location: South Dakota, USA
Key Fact: "Sue" is the most complete and well-preserved T. Rex skeleton ever found, with over 90% of its bones recovered.
Fun Facts
T. Rex Had Feathers
Young T. Rex dinosaurs were covered in feathers, which they lost as they grew older.
Stegosaurus's Tail Spikes
Stegosaurus had four sharp spikes on its tail, known as a "thagomizer," which it used for defense against predators.
More Details
The Tyrannosaurus Rex and Stegosaurus were two iconic dinosaurs, but they lived in different time periods and had vastly different lifestyles. T. Rex was a fearsome predator of the Late Cretaceous, while Stegosaurus was a herbivorous dinosaur from the Late Jurassic. T. Rex, the "king of the dinosaurs," was a massive carnivore weighing up to 9 tons and standing 12-15 feet tall. Its powerful jaws and bite force of ~12,800 psi made it one of the most formidable predators of all time. Despite its size, T. Rex could reach speeds of 12-20 mph, making it a deadly hunter. Stegosaurus, on the other hand, was a herbivore weighing around 5 tons and standing 14 feet tall. Its most distinctive features were the large bony plates along its back and the sharp spikes on its tail, known as a "thagomizer." These spikes were likely used for defense against predators. Stegosaurus was a slow-moving dinosaur, with a top speed of only 5-7 mph. In a hypothetical encounter, T. Rex would have the advantage due to its size, strength, and predatory instincts. However, Stegosaurus's thagomizer could deliver devastating blows to any predator that got too close. While T. Rex would likely win in a direct confrontation, Stegosaurus's defensive adaptations would make it a challenging opponent. Final Verdict: T. Rex Wins 9/10 Times!