Cretaceous Essays

occurrence. The Mesozoic era is sometimes called the age of reptiles. Mesozoic means “middle animals”, and dinosaurs were conceivably the most typical organisms in the Mesozoic. The Mesozoic is sectioned into three periods: Triassic, Jurassic, and Cretaceous. The dinosaurs had evolved in the Triassic period, however, they were not very diverse until the Jurassic. The world’s life forms were very different during this era than either before or after. The Mesozoic era extends

Dinosaurs are one of the most successful, diverse, interesting animals which had ever lived on the earth. They had ruled our earth throughout the whole Mesozoic era. They were extinct in the mass extinction during the cretaceous era. Their unique physiology, body structure, metabolic rate and many other characteristics which make them more interesting to us. Not only the scientists but also the common people have a keen interest about them. But as they all are extinct and it is impossible to have

like mammals and others birds, warm blooded. Dinosaurs are creatures that lived on Earth around 251 million years ago. Dinosaurs lived in the Mesozoic Era. This era contained three separate subsections: the Triassic Era, the Jurassic Era, and the Cretaceous. When the Mesozoic Era ended, most or a majority of the dinosaurs were extinct due to a catastrophic event that is still unknown to us today. Dinosaurs walked in an upright position, some dinosaurs used two legs, other used four to walk and move

It is said that they first appeared on our land 230 million years ago. Our attention was drawn to the dinosaurs after watching the blockbuster science fiction film entitled Jurassic Park directed by Steven Spielberg in 1993. By the end of the Cretaceous period, about 65 million years ago, they had experienced a catastrophic extinction. How often have you wondered what happened to the dinosaurs? Do you know what factors contributed to their rapid extinction? Now, let me tell you my theories on behalf

Discovery A team of researchers in Madagascar has discovered the fossil of what may be the largest frog to have ever lived. The beach-ball-size amphibian, which grew to be 16 inches (40.6 centimeters) long and weighed about (4.5kilograms) its name is Beelzebufo. ’Paleontologist David Krause of Stony Brook University in New York made the discovery and is working together with other scientists to determine how. Habitat/ Relation Beelzebufo is related to other frogs and to understand how and why they

A massive skeleton of the Tyrannosaurus stands tall a few feet from the entrance making it the first thing you see when you walk in. It looks about as tall as two stories of a building. Although it 's frozen I can 't help but get an unnerving feeling when I look at its carnivorous looking teeth and long-nailed claws. It 's skeleton is well looked after, it looks polished and smooth like glass. Due to aging it has lost some of its bones, and the remaining have been kept intact using screws, which

Paleogeography This geological evidence is only one piece of the puzzle and only gave paleontologists some clues regarding the changing environmental conditions that played a role in the Devonian extinction. Examinations of the changing paleogeography during this time also shed light on factors that may have affected the placoderms. The world map of the Devonian looked very different from the world map today. Things were moving towards the formation of Pangea, which meant that continents were coming

scientists have long endeavored to unravel the enigma surrounding the Cretaceous-Tertiary Mass Extinction, which took place 65 million years ago. This event is most notorious for the halt of existence for the dinosaurs, undeterred by the fact that nearly three fourths of all flora and fauna species subsisting on Earth went extinct. Consequently, Paleontologists have proposed a profusion of theories to decipher how the Cretaceous-Tertiary Mass Extinction transpired. However, a sheer bulk of the theories

Jurassic Park is a film that was directed by Steven Spielberg which arrived to cinemas in 1993 and it was an instant success. This film was one of the first action movie's with animals based from the Jurassic period of Earth's history. Jurassic park is a Sci-Fi film that specialises in dinosaurs which continue to roam the Earth due to genetics. Throughout this film the characters are continuously attempting to escape from these creatures whilst attempting to protect each other. The main characters

Two sets of footprints in the sand of a beach in Germany have been found to belong to two dinosaurs from over 142 million years ago. The findings may reveal that these specific dinosaurs, as well as perhaps many others, were actually social creatures. Two Theropod Dinosaurs Left Footprints on A German Beach Two dinosaurs that lived millions of years ago enjoyed eating meat and long walks on the beach in Münchehagen, Germany according to the findings of biologist Pernille Venø Troelsen of the University

Introduction – Mammals are the dominant large unique group of animals having a number of morphological and physiological characteristics. They evolved from a group of reptiles called the synapsids. These reptiles arose during the Pennsylvanian Period (310 to 275 million years ago). A branch of the synapsids called the therapsids appeared by the middle of the Permian Period (275 to 225 million years ago). It was over millions of years that some of these therapsids evolved unique mammalian features

In 1842 a young English scientist named Richard Owen created the word Dinosauria to describe a newly discovered group of ancient animals. A word created from Greek roots meaning “terrible lizards” the name caught on. Although Owen created the name “Dinosaur” and took much of the credit for earlier paleontological study, he did not actually discover the fossils himself. Owens based his theory of dinosaurs on the first three published dinosaur discoveries. The first dinosaur fossil described was the

Im very interested in this this period time, where the study of paleontology became a contest between two men, Marsh and Cope who were rivals who despised each other. Their efforts let to the discovery of many new animals that once walked the earth, between both of them over a hundred fossils were discovered. I’d like to go into a few regions where they found fossils, go into the history of the area a bit and which dinosaurs were found, then go into those species found. Not all of them, but some

Palaeoecology of the famous Tyrannosaurus rex Name: Maria Kristina Ingreso Student Number: INGMAR004 Lecturer: Anusuya Chinsamy-Turan Tyrannosaurus formally makes up the clade Tyrannosauroidea and the Tyrannosaurus rex is by far one of the most famous dinosaur of all time. Various aspects of the palaeoecology of the Tyrannosaurus rex could be determined from the interpretations of the fossil record. The taxonomic studies, palaeoenvironmental analysis (i.e. sediment) and the functional

The first geological period during the Paleozoic Era was the Cambrian period. This period took place roughly around 542 to 488.3 million years ago. During this period was when most animal groups stared to appear in fossils. This was also the time were the earth had one super continent, which was called Rodinia. The climate during this period was mild and the oceans were beginning to become oxygenated (The Cambrian Period). The second geological period during the Paleozoic Ear was the Ordovician

This article stood out to me because I used to want to be a Paleontologist and I am also a big fan of the Jurassic Park movies. This article takes a look at the Velociraptor and the genetic makeup as well as phenotypes that it displays. A recent discovery showed that the real Velociraptor was a lapdog-sized predator covered in feathers. In Jurassic park the velociraptors are shown as raptors that are bigger than humans and have a rough scaly skin. If you look at the arm bones of Velociraptor you

Micheal Crichton’s 1990 novel “Jurassic Park,” is a science fiction cautionary tale of how reckless experimentation without proper oversight can lead to catastrophic results. The novel revolves around an isolated Costa Rican island and the dangerous experiments taking place there. When a series of mysterious animal attacks begin to occur on mainland Costa Rica, a connection is made between the attacks and the “biological reserve” on Isla Nublar. Two paleontologists Allan Grant and Ellie Sattler are

Dinosaurs are a group of reptiles that became extinct 65 million years ago. Over the course of the 4 million years we have been living, scientists have observed our world. Scientists have taken scientific facts combined with the bodies of many Dinosaurs to help come up with theories about extinction. As scientists found more dinosaurs they wondered how dinosaurs became extinct. Scientists realized that our planet had been inhabited by another mammal before humans. Numerous ideas have been

Scientists suggest that the dinosaurs died out soon after a huge meteorite crashed on Earth close to the Gulf Coast of Mexico. When the meteorite hit the Earth it triggered a chain of climatic events so bad the dinosaurs could not survive. Scientist has suspected they died from a asteroid, and have found a layer of ash and debris with thrown up dirt and fossilized dinosaur skeletons around the time the asteroid hit. There has also been numerous of test done on the soil they found the fossilized skeletons

Endless theories and hypothesis’ surround the disappearance of the dinosaur species. Comets, asteroids, disease, and volcanic eruptions are just some of the presumed causes of their extinction. Which one is to believe? In “Sex, Drugs, Disaster, and the Extinction of Dinosaurs,” Stephen Jay Gould presents three proposals for their extinction: Sex, Drugs, and Disasters. Gould explains the three theories on the extinction of dinosaurs by giving a biologic and scientific reason for each, with the purpose