What was the most aggressive dinosaur

Create a personalised ads profile. Select personalised ads. Apply market research to generate audience insights. Measure content performance. Develop and improve products. List of Partners vendors. Share Flipboard Email. Bob Strauss. Science Writer. Updated September 20, Featured Video. Cite this Article Format. Strauss, Bob. Deadliest Dinosaurs of the Mesozoic Era.

Carcharodontosaurus, the "Great White Shark" Dinosaur. The heaviest dinosaur was Argentinosaurus at 77 tonnes. It was the equivalent to 17 African Elephants.

Argentinosaurus is a double award winner being also the longest dinosaur. It is also the largest land animal to have ever lived. Dinosaur eggs come in all shapes and sizes. They tend to be ovoid or spherical in shape and up to 30cm in length - about the size of a rugby ball. The smallest dinosaur egg so far found is only 3cm long. Once the egg has been fossilised it will become hard like rock, but it will retain a structure of its own.

The smallest fully-grown fossil dinosaur is the little bird-hipped plant-eater like lesothosaurus, which was only the size of a chicken.

Smaller fossilised examples have been found, but these are of baby dinosaurs. One of the most intelligent dinosaurs was Troodon. It was a hunting dinosaur, about 2 metres long, and had a brain size similar to that of a mammal or bird of today, stereoscopic vision, and grasping hands.

Stegosaurus had a brain the size of a walnut - only 3 centimetres long and weighing 75 grams. However, comparing brain size to body size sauropodomorphs, like Plateosaurus, were probably one of the dumbest dinosaurs. The tallest dinosaurs were the Brachiosaurid group of sauropods. Their front legs were longer than the rear legs giving them a giraffe-like stance.

This combined with their extremely long necks, which were held vertically, meant they could browse off the tallest trees. Brachiosaurus - the most well known of the group - was 13 metres tall. Sauroposeidon was massive and probably grew to It had huge claws and ferocious jaws. While not a dinosaur, Liopleurodon had a bite 10 times as strong as Tyrannosaurus. It grew to feet long, the biggest prehistoric marine reptile. Spinosaurus is a genus of theropod dinosaur that lived in what now is North Africa, during the lower Albian to lower Cenomanian stages of the Cretaceous period, about to 97 million years ago.

Tyrannosaurus, meaning "tyrant lizard", from the Ancient Greek tyrannos, "tyrant", and sauros, "lizard" is a genus of coelurosaurian theropod dinosaur. It also had a tremendous bite force, the strongest of any dinosaur and living terrestrial animal.

Its bite force reached up to 12, pounds. Giganotosaurus is a genus of theropod dinosaur that lived in what is now Argentina, during the early Cenomanian age of the Late Cretaceous period, approximately Utahraptor is a genus of theropod dinosaurs. It contains a single species, Utahraptor ostrommaysorum, which is the largest known member of the family Dromaeosauridae. Saurophaganax was powerful enough that it could hunt any dinosaur available in its area.

Due to its large size and scary appearance, the predator would eat large sauropods and heavily armored stegosaur. Nevertheless, it has had a dangerous competition for food due to the presence of several deadliest predators like Ceratosaurus, Acrocanthosaurus, and Edmark. Size: 8 to 27 m. Mass: 22, kg. Family: Diplodocidae. However, the reality behind this long-necked, gentle, and herbivore predator of the late Jurassic period is very interesting and scary.

Diplodocus indeed seems to be friendly, but a foot-long tail enabled this foot dinosaur to crack the enemies at hypersonic speeds. In addition to its squishing its enemies with a well-placed stomp of its hind foot, Diplodocus was very good at approaching the preys at gigantic heights. Mass: 73 to kg.

Discoverer: John Ostrom. For years, dinosaurs were thought to be languid and lumbering due to their gigantic size and weight. However, the perception was overhauled with the discovery of Deinonychus, which was a quick-witted pack hunter specifically built for speedy pursuit.

Despite twice the size of Velociraptor, Deinonychus has interlocking vertebrae that enabled the predator to balance its stiffed tail while running. Besides, the prey was disemboweled in its jaw, hands, and retractable toe-claws. Whenever an opportunity arose, Deinonychus would strike on the enemy and chop the prey till death. Size: 90 cm. Mass: 50 kg. Family: Troodontidae. Discoverer: Charles W. This 1. This body structure and composition allowed Troodon to run with greater speed and agility.

Thanks to its huge orb-like eyes that enabled it to hunt nocturnally and see in low-lighting conditions. A group of sharp-minded and agile Troodons could bring down gigantic and powerful dinosaurs with their intelligence and superior vision. Size: 2 m. Mass: 18 to 23 kg. Family: Coelophysidae. Discoverer: Cope.

This light-weight and tiny dinosaur is another example of intelligence overcoming physical strength and might appearance. Weighing only around 44 pounds, Coeplophysis was quite agile and able to take action quickly. They used their boasted blade-like cutting teeth to chop their prey into pieces. To overcome their small size, Coeplophysis used to hunt in organized groups with proper planning.

This way, they could meet their objectives and attack their prey even before anyone settles down. Moreover, they often took advantage of their small size by hiding in small areas and striking the enemies at the right time. Temporal Range: 71 million years. Size: 8 to 9 m. Believed to be a distant cousin of the T-Rex, Carnotaurus had smaller arms with two horns on its head. It used its muscular neck in hunting and fighting conspecifics. Likewise, the distinctive horns were used as hunting weapons to injure or kill small prey.

Evidence suggests Carnotaurus used to combat each other with head blows or by using their horns as shock absorbers. Carnotaurus was so powerful that it could hunt down very large prey. Despite less developed hearing and sight, the predator had an acute sense of smell along with powerful muscles that helped him run fast without losing balance.

Temporal Range: 70 million years. Size: 10 to 12 m.