Preview

Time: The Paleozoic, Ordovician Period

Good Essays
Open Document
Open Document
1074 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Time: The Paleozoic, Ordovician Period
My journal entry began when I started learning about the eras of geologic time like the Paleozoic, Mesozoic, and Cenozoic eras. Although the various time periods were all very interesting, I found the Paleozoic era to be the most fascinating.'Paleo' means ancient or way early times in Greek and therefore Paleozoic means ancient life. This era was divided into six major parts. These parts are named the Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian periods. The Ordovician period lasted till 45 million years. It began 488.3 million years ago and it ended 443.7 million years ago. The early Paleozoic era started when the oceans overwhelmed the low-lying insides of the landmasses. The ancient Paleozoic climates were gentle. …show more content…
Laurella amazing class, I decided to hop in my time machine and go back 540 million years ago to explore the major events of the Paleozoic era. Once I reached the Paleozoic era, I looked around and saw all of the water. Eventually, I went to find the trilobites to get a sample of them so I could prove heir existence. Trilobites are fossil gatherings of terminated marine arthropods that shape the class Trilobita. Trilobites shape one of the soonest known groups of Arthropods. Arthropods are described as Crabs, lobsters, arachnids, centipedes, and millipedes—these animals all fit in with the phylum Arthropoda, the best gatherings of creatures on Earth. Then I was continuing my journey to search in of Paleozoic animals. Afterwards, I was walking and suddenly, my footsteps stopped on the hard layer. I thought it would be rocks. But then I thought again that I should just check that what type of rock it is. It was under the ground. So I tried to take it out. My robot was helping me too. I made the robot for taking samples, pictures, and videos. So, he tried to help me. And suddenly, I was so shocked. I was dying. That's how shocked I was, and guess what I found, I found a huge fossil of Permian. Permian is a Paleozoic animal that got extinct before 244 million years ago. Later Paleozoic oceans were ruled by crinoid and blastoid echinoderms, articulate brachiopods, graptolites, and organize and rugose corals. Before the end of the …show more content…
Amid this time, ice secured the northern piece of Africa, which was situated over the South Pole. In ancient times, the mainlands were far separated, yet moving tectonic plates made landmasses to move together into a vast landmass named Pangea. That all were major events. Then by time machine, I came back into my real life for telling you that this is all I found when I went back to Paleozoic era for my awesome and amazing journey. And thank you for letting me go back to different era because less people gets to go to new world. I liked more about this trip that I saw so many different types of creatures. And I found a fossils of the animals who lived during Precambrian time. I collected those samples. I saw many amphibians, and they were really cool. But some creatures were so dangerous because they were poisonous and we could die from it, and some were so huge that we had to look so up. Moreover, I tried to learn more and more stuff about the Paleozoic

You May Also Find These Documents Helpful

  • Better Essays

    Your Inner Fish

    • 857 Words
    • 4 Pages

    Professor of Anatomy and world-renowned paleontologist Neil Shubin dates our human origins back to an approximately 375 million-year-old rock discovered on Ellesmere Island. The island was located just east of Greenland and well within the Arctic Circle. What looks to be the oldest land animal was discovered fossilized in that ancient rock. The scientific breakthrough was a species now known as the Tiktallik, the oldest discovered land animal. This significant advancement is a crossover animal that seems to be bridging the gap making animals a common ancestor of fish. The Tiktallik carried the traits making it an almost perfectly intermediate cross between a fish and an amphibian. This suspicious animal’s features include both scales and fins with fin webbing. However, the fins contain the standard limb structure of one upper and two lower arm bones, as well as a wrist. The arm bones seem to have given this creature the ability to move under rocks, possibly to escape from dangerous predators. Other more curious features are the neck of a land animal and a flattened head.…

    • 857 Words
    • 4 Pages
    Better Essays
  • Good Essays

    eig121

    • 3791 Words
    • 16 Pages

    The author and his colleagues specifically chose to focus on 375 million year old rocks in their search for fossils because this was the time frame that provided fish that would be useful to study from. The 385 million year old rocks provided fish that look too similar to the ones we have now and the 365 million year old rocks have fossils that don’t resemble fish. The 375 million year old rocks, however, provide fossils that show the transition between fish and land living animals. Sedimentary rocks are the type of rock that preserves the fossils. Limestone, siltstone, shale, and sandstone are examples of this. The reason why these rocks are the best at preservation is because they are formed by a process that includes the movement of lakes, rivers, and seas. A rock in a body of water has the potential to fossilize because after the gradual compression on the layers in the body of water forming, chemical processes are still happening.…

    • 3791 Words
    • 16 Pages
    Good Essays
  • Good Essays

    The Paleolithic era was an era that started two million years ago, and ended ten thousand years ago. This era often called the Old Stone Age was when human evolution took place, it was a very slow going change from ape like humans to today’s Homo sapiens. This era is important because during this time humans started to make stone tools for hunting, making shelter and creating clothing, and without this era who knows where we would be now,…

    • 1569 Words
    • 7 Pages
    Good Essays
  • Satisfactory Essays

    Text Books

    • 273 Words
    • 2 Pages

    Author: Hornsby Edition: 5th Copyright: 2011 Publisher: Pearson Education ISBN: 9780321708960 New: $214.75 Used: $161.25 New Rental: N/A Used Rental: N/A Choice Fossils and the History of Life History of Life Author: Cowen Edition: 4th…

    • 273 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    into the land creature of a frog over the last 3 billion years a lot of…

    • 301 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    The Paleolithic Era

    • 1184 Words
    • 5 Pages

    The Paleolithic Era, also known as the “old stone age” was a time where humans foraged hunted wild animals or gathered edible portions of wild plants. Nothing was stored because people were always on the move. they couldn’t take the extra weight. The Neolithic Era or the “new stone age” refers to a period of time where humans began refining their tools for use on domesticated plants and animals. It was during this time that people began to store dry or wet things in pottery due to the surplus of food that had to be stored. The beginning of the Neolithic Era was the Transition to Agriculture. Neolithic peoples wanted to secure themselves a more stable lifestyle with a sure income of food. Women of this time began to nurture plants and men began…

    • 1184 Words
    • 5 Pages
    Good Essays
  • Good Essays

    Dino Dig

    • 523 Words
    • 4 Pages

    In this activity you’ll make use of some of the techniques and evidence that paleontologists work with to determine the identity of different fossils to establish the particular time period in which those creatures lived.…

    • 523 Words
    • 4 Pages
    Good Essays
  • Satisfactory Essays

    Amu Scin138 Lab 9

    • 1581 Words
    • 7 Pages

    Record your answer to Lab Exercise, Step 2, Question 12. How long ago was the…

    • 1581 Words
    • 7 Pages
    Satisfactory Essays
  • Better Essays

    Paul D. Taylor and David N. Lewis. 2005. Fossil Invertebrates. Harvard University Press. 208 p.…

    • 1291 Words
    • 6 Pages
    Better Essays
  • Satisfactory Essays

    During the earliest periods of the Grand Canyon formation where we have Tapeats sand stone, bright angel shale and muav limestone it would appear that there was a relatively shallow, warm sea. This is indicated by the presence of Trilobite fossils found in this layer which thrived in that environment. Trilobites were early animals that had exoskeletons that are usually the only part of them that is preserved in the fossil record. They were marine bottom feeders who thrived in warm nutrient rich waters.…

    • 344 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    The Cenozoic is divided into three periods, the Paleogene, the Neogene, and the Quaternary. Paleogene and Neogene are relatively new terms that now replace the deprecated term, Tertiary. The Paleogene is subdivided into three epochs, the Paleocene, the Eocene, and the Oligocene. The Neogene is subdivided into two epochs, the Miocene and Pliocene.…

    • 53 Words
    • 1 Page
    Satisfactory Essays
  • Good Essays

    The Paleolithic age covers a period from about 30,000-12,000 BCE. This era is also known as the Old Stone Age. The Neolithic age, also called the New Stone Age, covers a period from roughly 8,000-2,000 BCE. Both of these ages are sub-periods that comprise the Stone Age. Large differences between these two ages mark a great divide in the social and economic changes of prehistoric peoples.…

    • 378 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Neoithic Era

    • 567 Words
    • 3 Pages

    The Neolithic Revolution changed gender roles because during the Hunting and Gathering days, men and women were equal in that they both shared the work. After the transition from Hunter Gathering days to the Neolithic Revolution, women stayed indoors more to take care of their children. This meant that they stayed home, instead of wandering around all the time searching for food. So, women were lower than men because they did not work. Men were higher because they control the amount of food they bring into the villages. Over the years the roles of both men and women have come full circle with the hunting and gathering days, to the Neolithic and back to equality today. I think the Neolithic Revolution was good.…

    • 567 Words
    • 3 Pages
    Good Essays
  • Good Essays

    o A yardstick for measuring the absolute time of evolutionary change based on the observation that some genes and other regions of genomes appear to evolve a constant rates…

    • 4658 Words
    • 19 Pages
    Good Essays
  • Good Essays

    The new frontier for fossil discoveries is China. Here Scientist are able to take evidence for evolutionary theories. The fossil record contains many well-documented examples of the transition from one species into another, as well as the origin of new physical features. Evidence from the fossil record is unique, because it provides a time perspective for understanding the evolution of life on Earth. David Attenborough embarks on an epic 500-million-year journey to unravel the incredible rise of the vertebrates. The evolution of animals with backbones is one of the greatest stories in natural history. To tell this story, David presents explosive new fossil evidence from China, a region he has long dreamt of exploring and the frontier of modern paleontological research. In the Time period known as the Cambrian, in which the land was still bare and lifeless but under water it was exploding into a multitude of forms. The first known vertebrate fossils, found at the Chengjiang locality in China, date back to the early Cambrian. Vertebrates appear to have radiated in the late Ordovician, about 450 million years ago. The major animal groups we know today were appearing on the planet for the very first time. They build their bodies of soft tissues and some even have a hard outhercase to protect their selves, but none had anything that resembled a backbone, and so they were called the invertebrands. But there is an exception, the Myllokunmingia, the first known common ancestor of all vertebrates. Using its early back-bone to move around in a totally new way, this animal diversified over millions of years to create the spectacular variety of backboned creatures we see on our planet today. A species was found as well in China that had a newly identified ‘missing link’; older fish have front fins but this one has another pair of back fins, or pelvic fins, granting much more swimming stability to the owner. Along with the jaw,…

    • 973 Words
    • 3 Pages
    Good Essays