Dinosaurs were a group of reptiles that lived during the Mesozoic era approximately 252 to 66 million years ago. ‘Dinosaur’ is a term first coined in 1984 to define the pre-historic reptiles that went extinct millions of years ago. It means
The unearthing of a Megalosaurus in the 1820s triggered interest in the study of dinosaurs, and since then, scientists have discovered various types of the species. World-leading palaeontologist Sir Richard Owen did extensive studies on the Megalosaurus, Hylaeosaurus and Iguanodon, and this is how he came up with the name.
The Mesozoic era is made up of:
Some of the genera that have been discovered over the years include: