Plant-eating dinosaurs are called herbivores, a Neo-Latin term that literally means "herb eater." Long-necked, herbivorous dinosaurs reach high into trees to eat green leaves and fruits, while the short-necked dinosaurs graze on grass and other low-lying vegetation. Herbivores are preyed upon by carnivorous dinosaurs, such as Tyrannosaurus Rex.Know More
Herbivorous dinosaurs first appeared during the Late Triassic period and died at the end of the Cretaceous period, which spanned from approximately 230 million to 65 million years ago, respectively. Herbivorous dinosaurs include such species as Stegosaurus, Triceratops, Brontosaurus and Brachiosaurus.
Approximately 700 different species of carnivorous, herbivorous and omnivorous dinosaurs have been discovered and named by palaeontologists.Learn more about Dinosaurs
The earliest conclusive evidence of the evolution of dinosaurs dates their origins to 230 million years ago. They are believed to have evolved from other reptilian species and developed certain defining characteristics, such as specialized hip and leg bones.Full Answer >
The end of the dinosaurs is one of the greatest mysteries of paleontology. The leading theory of their extinction involves a massive meteor impact, possibly the one that created the Chicxulub crater in Mexico. Alternative theories include multiple global impacts, a sudden change in the sea level and a worldwide increase in volcanic activity that drastically altered the atmosphere and global climate.Full Answer >
Dinosaurs come from the evolution of early primitive organisms approximately 230 million years ago and it is unknown why these organisms evolved into dinosaurs. Scientists have been able to trace dinosaurs back 228 million years ago to one of the first species known as the "eoraptor" that was the size of a dog and was carnivorous.Full Answer >
Though there were some dinosaurs with mammal-like qualities, dinosaurs were actually reptiles; however, though the word "dinosaur" roughly translates to "terrible lizard" in Greek, dinosaurs were not actually lizards, either. Dinosaurs represent a distinct group of reptiles that is now extinct, though there may be some living animals, including some birds, that are distant evolutionary relatives of the dinosaurs. The animals described as being mammal-like dinosaurs were actually early relatives of the dinosaur, and they were the dominant land animal about 260 million years ago, as opposed to the dinosaur, which was the dominant land animal about 231 million years ago.Full Answer >