According to a group of palaeobiologists from the Bristol University, the earliest dinosaurs contained carnivorous, omnivorous and herbivorous species.
During the Mesozoic, marine reptiles known as ichthyosaurs dominated the oceans for approximately 160 million years. At the beginning of the 19th century, curiosity over their peculiar fossils led to the development of paleontology.
The discovery of a particularly well-preserved duck-billed hadrosaur in North Dakota raises the possibility that there are more mummified dinosaur than previously thought.