Extinct animals size

[SameerluvAnimals]

Dimetrodon is an apex predator and one of largest land animals of its time. It is often mistaken for a dinosaur but it became extinct some million years before the first appearance of dinosaurs. The most distinctive feature of Dimetrodon was a gigantic sail on its back. It is believed to be more closely related to mammals than to reptiles though it is not a direct ancestor of mammals. The largest species D. angelensis was about 4.6 metres (15 ft) 
in length and weighed upto 300 kg or more.

Fossils have been found in United States (Arizona, New Mexico, Ohio, Oklahoma, Texas and Utah), Canada and Europe (Germany).




The megalodon is the largest shark that has ever existed. It is a fearsome killing machine and has the most powerful bite of any animal. It had a bite force of 108,514 N (24,390 lbf) - 182,201 N (40,960 lbf).   The megalodon is usually considered to be the most powerful predator in vertebrate history.

Megalodon was about 12 - 18 meters (40 to 60 ft) long and weighed over 50 tonnes. It had a very robust dentition and had a total of about 276 teeth in its jaws, spanning 5 rows. A large megalodon had jaws over 2.1 meters (7 ft) across. The largest known megalodon tooth is about 7 3/8 inches in length. The largest confirmed great white shark teeth are less than 3 inches long.

Fossils have been found from many parts of the world, including Europe, Africa, both North and South America, as well as Puerto Rico, Cuba, Jamaica, the Canary Islands, Australia, New Zealand, Japan, Malta, the Grenadines and India. Also from regions far away from continental lands, such as the Mariana Trench in the Pacific Ocean.