Some that are interesting to me:
1 - Argentavis
It was the largest bird in history. It stood between 1.5 and 2 meters tall and had a wingspan that could reach 7 meters.
2 - Sarcosuchus
It was a giant crocodile, 10 to 12 meters long and weighing 3,500 to 4,300 kilos. The most interesting thing is that it coexisted with dinosaurs, meaning it had formidable enemies.
3 - Therizinosaurus
It was a herbivorous dinosaur that lived during the Cretaceous period. It measured between 7 and 12 meters long, each arm was 2.5 meters long, and its single, scythe-shaped claw measured 70 centimeters at its outer curve. Its claws made it very popular among dinosaur enthusiasts and fans of Jurassic World.
4 - Titanoboa
Imagine a snake that's 13 meters long today. Interestingly, the Titanoboa ate crocodiles; it was truly the queen of snakes.
5 - Entelodon
Entelodon was a mammal similar in appearance to a wild boar that lived between 28 and 37 million years ago, measured 1.35 meters in height at the shoulders, with a skull 65 centimeters long.
6 - Eslamotherium
It is an extinct genus of large rhinoceros that lived in Asia and Russia. Its main characteristic is a single horn in the middle of its head, similar to a unicorn's. It is even called the Siberian unicorn.