
Herrerasaurus Description
Herrerasaurus was a pioneering Late Triassic bipedal carnivore characterized by a long, narrow skull with a flexible, hinge-like jaw designed for gripping prey. It had a light build, strong legs for running, and specialized hands featuring sharp, curved claws on three fingers for grasping.
Could You Outrun a Herrerasaurus?
Herrerasaurus was a swift, agile predator built for the chase. With its long, powerful hind limbs and a tail that acted like a biological stabilizer for high-speed turns, it could reach speeds of approximately 25 to 28 mph (40–45 km/h). For context, the average human jogs at about 6–8 mph and sprints at roughly 15 mph. Even Usain Bolt, the world’s fastest man, peaks at 27.8 mph—meaning he might barely keep pace for a few seconds before the Herrerasaurus caught up!
Are You Bigger Than a Herrerasaurus?
While it wasn’t the biggest dinosaur to ever live, Herrerasaurus was still a formidable size compared to a person. It grew to lengths of 10 to 20 feet (3 to 6 meters), weighed between 440 and 770 pounds (200–350 kg), and It stood about 4 to 5 feet tall at the hip.
Fun Facts
- It is one of the earliest known dinosaurs to ever walk the Earth, living about 231 million years ago.
- Its name means “Herrera’s Lizard,” named after Victorino Herrera, the Argentine goat herder who discovered the first fossils in 1959.
- It had a unique, hinged lower jaw that could slide back and forth to help it grip and “saw” through the meat of its prey.
- While later meat- eating dinosaurs usually had three fingers, Herrerasaurus was more primitive and actually had five fingers on each hand. However, only the first three had sharp claws for grabbing prey—the other two were just tiny, clawless stubs.
Dino-mite Equations!
Question #1: What is the average weight of a Herrerasaurus?
Answer #1
605 lbs!
Question #2: How much faster is a Herrerasaurus than a sprinting human?
Answer #2
13 mph!
