Cretaceous Essays

  • Dinosaurs Were They Cold Blooded Essay

    1065 Words  | 5 Pages

    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

  • Why Are Dinosaurs Warm Or Cold Blooded

    491 Words  | 2 Pages

    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

  • Beelzebufo Research Paper

    350 Words  | 2 Pages

    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

  • Descriptive Essay On Tyrannosaurus

    764 Words  | 4 Pages

    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

  • Jurassic Park Research Paper

    970 Words  | 4 Pages

    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

  • Therapsids Evolution

    484 Words  | 2 Pages

    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

  • Jurassic Park Analysis

    734 Words  | 3 Pages

    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

  • Ordovician Period Essay

    794 Words  | 4 Pages

    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

  • Jurassic Park Phenotypes

    669 Words  | 3 Pages

    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

  • Who Is Micheal Crichton´s Jurassic Park?

    645 Words  | 3 Pages

    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

  • Cretaceous-Tertiary Mass Extinction

    1031 Words  | 5 Pages

    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

  • The Volcano Theory: The Extinction Of Dinosaurs

    502 Words  | 3 Pages

    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

  • Disappearance Of Dinosaurs Essay

    1191 Words  | 5 Pages

    What are the major theories explaining the disappearance of the dinosaurs? Dinosaurs lived between 230 and 65 million years ago. Dinosaurs then disappear as if they were never on earth. There are many theories in the world about the death of the dinosaurs. Archaeologist discovers the the bones of dinosaurs from different time periods. Some believe that a large asteroid hit the earth, killing all living matter. Others believe that a huge volcano erupted on earth killing all matter on earth quickly

  • Evolving Planet Observation Report

    1443 Words  | 6 Pages

    Planet Earth has experience four eras that include eleven periods and six mass extinctions throughout evolution. The Evolving Planet exhibit at the Field Museum in Chicago, IL describes the evolution of Earth in great detail. The evolution of Earth starts in the Precambrian period and continues to the Cenozoic era, which is still continuing today. Evolution is the idea that living species are descendants of ancestral species that existed from earlier forms of life. All the organisms, rocks, or other

  • Mya Seaway Research Paper

    1677 Words  | 7 Pages

    INTRODUCTION The Cretaceous Period, spanning 65.5-146 million years ago (Mya), was a world different from what we are familiar with today. Planetary changes during this period included the extinction of dinosaurs and drastic global warming. The breakup of the super continent Pangea had started about 30 Mya, and seaways had begun to form and cover landmass that had once been a part of the super continent (Geologic Time). Today, scientists know that one of these landmasses, the North American continent

  • Advantages And Disadvantages Of Peer Review

    1085 Words  | 5 Pages

    spatial patterns of each time period to identify principle differences in organic matter richness and quality across the Atlantic basins and link them, at least to some extent, to the underlying processes. At subtropical-tropical latitudes in the mid-Cretaceous, the most areas of the N-Atlantic made this period particularly sensitive to the influences of Hadley Cell circulation and its latitudinal shifts. We propose to strengthen and improve under greenhouse conditions Cenomanian Turonian deposition conditions

  • Mass Extinction In Evolution

    809 Words  | 4 Pages

    close to us now 65 million years ago during the Cretaceous-Tertiary extinction event, and all 3 events in between have affected the animals and plants surrounding our planet gigantically. Mass extinction is when there is a rapid decrease of animals and plant species on earth due to the earth's natural disasters, some of the earth’s disasters can even lead to the evolution of a new era. For example: the Cretaceous Paleogene extinction. The Cretaceous Paleogene had a combination of volcanic activity

  • Latitudinal Zonation In Dinosaurs

    1091 Words  | 5 Pages

    A controversy always surrounds dinosaur regarding it being ectothermic or endothermic. Mammals and birds use their metabolic heat, muscular shivering mechanism, insulating coat in the form of fat deposits, hair or feathers to maintain fairly constant body temperature within a range of ± 2ºC and are endothermic. On the other hand, reptiles, fishes and amphibians exhibit variation in body temperature depending on the ambient temperature and are ectothermic. Dinosaurs have been placed in the subclass

  • Were Dinosaurs Warm Blooded

    1240 Words  | 5 Pages

    Jurassic and Cretaceous periods were hot and muggy. It’s is true that many dinosaur fossils have been found at high altitudes , but 100 million years ago even a 10,000 foot high mountain peak might have been relatively balmy. If the climate was hot throughout the year that would have favoured cold blooded dinosaur as they relied on outside temperatures to maintain their body

  • Essay On Platypus

    1806 Words  | 8 Pages

    A ‘living fossil’ has been determined as ‘an organism that has remained essentially unchanged from earlier geological times and who’s close relatives are usually extinct’ (Merriam-Webster, 1859). This is suggesting that the Duck-billed Platypus, more commonly known as the Platypus, would still be in its primitive form and have similar characteristics to it ancestors. Anyone looking at the Platypus can identify its abnormalities as it is so distinctively unique in the animal kingdom. Its name on its