Abstract— About Sixty-five million years ago, one of last non-avian reptile species called dinosaurs vanished from the earth. The extinction of this huge animal is a never-ending topic of interest, the mass extension of dinosaurs occurred over a very short geological period.
Keywords— Non-Avian Dinosaurs, Mass extinction, Dinosaurs extinction theories; Asteroid impact; Volcanism;
I. INTRODUCTION
Dinosaurs are the certain group of reptiles which influenced and ruled the earth for more than 160 million years, which are descendant from the species called Archosaurs. These huge reptile creatures were of various shapes and sizes, from frightening huge Spinosaurus to the small sized Microraptor. Dinosaurs were lived in a …show more content…
1. Extinction of Dinosaurs.
Image source: MasPix/devianart, “https://www.universetoday.com/36697/the-asteroid-that-killed-the-dinosaurs/”
IV. CONCLUSION As per the scientific research, the reason could be due to the asteroid (or comet) impact or may be due to the volcanic eruptions, some also believe the real reason was a slow change in the climate or in the food chain. The reason for the mass disappearance of dinosaurs is still a scientific mystery.
REFERENCES
[1] Chung-Tat Cheung, March 2017, “Dinosaurs Extinction”, Explore at NatGeo. Available: “http://www.nationalgeographic.com/science /prehistoric -world/dinosaur-extinction/”.
[2] The Trustees of The Natural History Museum, London, “The Dino Directory”, Natural History Museum. Available: “http://www.nhm.ac.uk /discover/dino-directory/about-dinosaurs/index.html”.
[3] Adriana Bauer, 2010, “Dinosaurs, Climate change and Biodiversity”, Queensland museum. Available: “http://www.qm.qld.gov.au/microsites /dino/02-dinosaur-extinction-theories/dinosaur-extinction-theories.html”.
[4] J. David Archibald and David E. Fastovsky, March 2012, Dinosaurs Extinction, e-ISBN: 9780520941434, University of California