Mass extinction is when large numbers of spices go extinct, when many types of spices go extinct, it effects the entire earth, and it all happened in a short time. Some scientists think the dinosaurs disappeared about 65 million years ago in the Cretaceous period. The Extinction of Dinosaurs Essay Sample Introduction; The Cretaceous Period ended in somewhat what paleontologists see as a catastrophic end to large vertebrates living on Earth during that era.
It was not only the extinction of large vertebrates living on land, sea and air but also of some tropical invertebrates, planktons and some land plants. The extinction of the dinosaurs started in the cretaceous period, around 65 million years ago, and caused the loss of up to 70 of all life on earth. The way in which the dinosaurs died is a much argued topic which can be explained by a lot of theories one of which is the Asteroid theory.
BIOL2110 Vertebrate Zoology Word count: 1056 Dinosaur extinction: An analysis of events and theories that possibly led to the dinosaurs' demise. " The great extinction that wiped out all of the dinosaurs, large and small, in all parts of the world, and at the same time brought to an end various lines of reptilian evolution, was one of the outstanding events in the history of life and in the history of the earth.
Essay on The Role of Fungus in the Extinction of Dinosaurs The Role of Fungus in the Extinction of Dinosaurs The debate over what ultimately killed off the dinosaurs is an area of great interest to not only scientists, but everyone.
Essay about Dinosaur Extinction 1381 Words 6 Pages A number of different theories have been assessed throughout the course of this research to attempt to reach a conclusion as to the reason behind the extinction of the Tyrannosaurus Rex.