Ordovician

arthropods that ranged from 10 cm to 2 m in length. They belonged to the extinct order Eurypterida of the phylum Arthropoda, Subphylum Chelicerata and class Merostomata. According to the fossil record, the first Eurypterids were present in the mid-Ordovician and they thrived in warm shallow water until the late Permian when they went extinct. Thus, they lived for a period of roughly 220 million years between 470 to 248 million years ago and were a widely diverse chelicerate order that lived in…

strike distance of 3000 Km and consists of three major realms, the Laurentian, Axial, and the Peri-Gondwanan Realm. These realms all have smaller zones within them that were accreted to the Laurentian craton from the early Cambrian to the early Ordovician. The building of the Appalachian Orogeny can be attributed to the accretion of exotic terranes and volcanic island arcs that were present in the Iapetus Ocean. The Iapetus Ocean is the ocean preceding the Atlantic. Through the…

Brady Price Mrs. Gillum English 11A 16 May 2018 Appalachian Mountain Appalachian refers to a largely rural people who reside in the southern Appalachian region covering about 110,000 square miles in the states of Maryland, Virginia, West Virginia, Kentucky, Tennessee, North Carolina, South Carolina, Georgia, and Alabama. Appalachian are spread through the Appalachian Mountains in nine states. This area consists of three physiographic regions. The Blue Ridge Mountains, with the highest peaks in…

In her book The Sixth Extinction, Elizabeth Kolbert writes that there have been five mass extinctions in the history of planet earth. She asserts that currently the earth is on the precipice of a sixth mass extinction. In contrast with the previous five, according to Kolbert this sixth extinction is almost entirely caused by humans and our exploitation of the earth. In each of the book’s thirteen chapters, Kolbert highlights a particular species that is now extinct and analyzes the causes and…

Chapter One: The author grew up in Kenya, a place which developed his love of nature and all the flora and fauna within it and provided a chance for that love to grow. His parents were both passionate naturalists, especially his father. He was taught to love fossils because of his parents love for them. Because of being raised in the wild, he has always been drawn to it. When he was younger, he would sell bones to museums. This job helped him to prepare for his future specialty in…

Shale of the Appalachian Basin With various depositional environments and the understanding of sea level change, the Appalachian Basin formed by the collision of tectonic plates and sediment accumulation under the Earth’s surface. The Appalachian Mountains reveal subsidence belts, faulted marine sedimentary rocks and other geologic rocks in these tectonic settings. The Basin exists in the northeastern states of North America. This large rock formation exhibits collisional tectonics with modern…

INTRODUCTION The human population on Earth has been growing at an alarming rate bringing with it an ever growing need for food, energy and land use, amongst many others. At the same time, the list of animal species recorded as being extinct or on the verge of being extinct gets longer and longer. Is this phenomenon coincidence or are these two occurrences directly link to each other? This research task aims to investigate if there is reliable proof that human population growth and species…

6th BIOLOGICAL CRISIS WHICH MAN IS THE CAUSE ABSTRACT This article will discuss the biological crises the Earth faced since the creation of the living organisms. Then, this article will argue the reasons why human beings generated a 6th biological crisis. Finally, this article will explain what the elements of this 6th biological crisis are. KEYWORDS Biological crisis, Extinction of species, environmental ecosystems, massive extinction, ecological niches, Industrial Era, greenhouses gases,…