Dinosaurs were believed to have roamed the Earth millions of years ago. It is a dominant species of vertebrate animals whose extinction brought up a lot of questions to scientists until the present day.

Dinosaurs used to be the dominant vertebrate animals of our ecosystem. Under the phylogenetic taxonomy, dinosaurs are classified as sole descendants of the most current ancestors of modern birds and Triceratops. It is also suggested that dinosaurs can be classified as the descendants of the most current ancestor of the iguanodon and megalosaurus. This is since these are two of the three main genres quoted by Richard Own, particularly when he distinguished the dinosaurian classification.

Hence, both classifications result to an identical set of animals being classified as dinosaurs. This would include the Sauropodomorph, Theropods, Ankylosaurians, Ornithopods, Ceratopsians and the Stegosurians. These classifications are printed to correspond with the precise conception of dinosaurs that predated the Earth via the use of Phylogenetics.

Although T-Rex is the most popular dinosaur, there are actually various types of dinosaurs that lived long ago. In fact, there are now several facts and information about the most common dinosaurs. Many books about paleontology and archeology give a lot of information about the different species that existed.

Names of the most common dinosaurs are categorized into two orders such as Ornithischia and Saurischia. The first order consists of the kinds of dinosaurs that walked on the surface of the earth. They have hip joints that allow them to stroll around. The other order consists of dinosaurs that have joints and enabling them to fly. The T-Rex is among the most common dinosaurs that fit into the Ornithischia order while the Archaeopteryx is the greatest example of the Saurischia order.

Facts about usual dinosaurs can also be found in the Internet. There is a wide information and detail about them. In fact, pictures of the most usual dinosaurs are also indicated so that even kids will have a general idea about their appearance.

There are also facts regarding the extinction of dinosaurs. These facts provide concepts on how dinosaurs became extinct in our planet 65 million year ago. Amongst other theories, the theory about a comet that hit the Earth and created massive mayhem such as clouds of smoke that lasted for months and deprivation of vegetation among others, is the one most believed by scientists. Up to now, paleontologists and archeologists study the fossils and remains of dinosaurs they found in order to shed light to the theories that pertain to their extinction centuries ago.

Some extinction theories are said to be primarily caused by environmental factors, multiple collision and asteroid collisions. Another theory about the extinction of dinosaurs is due to a massive volcanic explosion of the Earth’s super volcanoes. It tells us that the super explosion overcame the Earth by means of sulfur dioxide and the blanketing of the surface of the Earth.

Facts about the bones of dinosaurs are complied and written in books by specialists that specialize in dinosaur bones. Numerous facts about bones of dinosaurs can also be found in museums. Archeologists study any dinosaur bone gathered from various parts of the word in order to know more about their kind and lifestyle. Due to the presence of fossils, the kinds of dinosaurs where revealed and man can now say that dinosaurs really existed some time in the past even before the birth of mankind.

Thus, facts about dinosaur eggs usually concentrate on what type of dinosaur they come from and the appearance of these eggs. The texture of the eggs can be verified by specie. It is interesting to know that these eggs follow a pattern when it comes to its eggshells. This pattern of eggshells enlightens us with what kind of dinosaur species it came from. The eggs of dinosaurs vary in shapes and sizes. Studying these eggs can help us analyze further these interesting species that once ruled the earth.

Source by David H. Urmann