10 Deadliest Dinosaurs

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6 – Troodon – Troodon, whose name means “wounding tooth” was a small, bird-like dinosaur that lived during the late Cretaceous period, around 75 million years ago. Troodons measured 8 feet long and 3 feet high and weighed around 100 pounds. They were highly intelligent, having proportionally one of the largest brains of all the dinosaurs. They were also pack hunters built for speed, with long, slender limbs with retractable claws. They possessed binocular vision and semi-manipulative fingers, to easily grasp and hold on to prey, and had large serrated teeth that could saw through flesh and bone. But rather than being true carnivores, fossil evidence suggests they may have had some veggies from time to time, making them omnivorous.

5 – Allosaurus – The Allosaurus was a large bipedal carnivore that lived during the late Jurassic period, around 150 million years ago. It had a large skull, with dozens of sharp serrated teeth, a short neck, tiny arms, thick muscular legs, and a long tail. It could grow as large as 40 feet long and weigh over 2 tons. It hunted large dinosaurs like Stegosaurus and Ankylosaurus. Some paleontologists believe Allosaurus used its skull like a hatchet against its prey, stabbing and grabbing flesh with its teeth and tearing it away from the bone. They suggest that this method of attack would allow Allosaurus to feed without killing, giving its prey time to heal, so that it could prey upon it again at later time. Other scientists think that Allosaurus may have used its small, strong arms to grasp its prey, while it ripped out its jugular, similar to lions and tigers of today.

4 – Giganotosaurus – Giganotosaurus, not to be confused with Gigantosaurus, was one of the largest carnivores that lived during the late Cretaceous period, around 100 million years ago. Its name means “giant southern lizard”, and their fossils have been found in South America in present day Argentina. Giganotosaurus was a descendent of Allosaurus and was bigger than T- Rex, but smaller than Spinosaurus. It could grow to be over 40 feet in length, 13 feet tall, and weigh 6.5 tons. It lived among the Argentinosaurus, who it hunted with other Giganotosauruses. It had a massive skull with over sixty 8 inch knife like teeth, a long tail, fairly long clawed hands, and powerful rear legs with sharp talons on its toes. Paleontologists believe Giganotosaurus could run over 30 miles per hour in pursuit of its prey. And it wasn’t pretty when it caught up to whatever it was chasing. Giganotosuarus’s preferred method of killing was to slice the flesh of its prey and let it bleed to death.

3 – Diplodocus – Diplodocus, whose name means “double beam” – in reference to its strong vertebrae structure, is the longest known dinosaur, which lived in the Jurassic period about 150 million years ago. It was over 115 feet long, of which 20 feet was neck, and weighed 16 tons. It had a very long tapered tail that it used to crack like a whip, to attack predators or scare them off. It had 19 vertebrae in its neck and 80 in its tail. Like most sauropods it walked on four legs and was an herbivore.

2 – Tyrannosaurus Rex – Tyrannosaurus Rex, also known as “T -Rex” is a large bipedal carnivore whose name means “tyrant lizard’. It lived during the late cretaceous period around 65 million years ago. While it is one of the most well-known of the dinosaurs, only 44 specimens have ever actually been found. T-Rex was 40 feet long, stood 13 feet tall, and weighed about 8 tons. Its massive head measured 5‘long and was wider in the back than the front, affording T-Rex binocular type. It also had a long, heavy tail to balance out the neck and head, large powerful legs, and short clawed arms. Its jaw contained a multitude of different teeth, some of which were almost a foot long and its jaw produced the strongest bite force of any dinosaur at the time, enabling it to crush flesh and bone in one bite.

1 – Pliosaurus – Pliosaurus, also known as Predator X, is a giant carnivorous marine dinosaur which lived in the late Jurassic period, about 150 million years ago. It measured 40 feet long and weighed 50 tons. Its skull was almost 7 feet long and it had 12” long teeth. It primarily ate fish, squid, and other marine reptiles but it was known to be highly aggressive. Just discovered in 2009, this marine dinosaur is said to have a bite that was four times harder than the T Rex.


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