Trilobite

As the city of Chicago prepped for the 1893 World’s Fair Columbian Exposition, a celebration of the 400th anniversary of Christopher Columbus’ arrival in the New World, people all over the world brought artifacts to the city. To keep these artifacts in the city long after the Exposition ended, Edward Ayer and Marshall Field established the Columbian Museum. Built using Field’s money, Columbian Museum would go on to house world artifacts as well as function as a research institution. As time passed

Around 530 million years ago, the Cambrian explosion made a significantly fast appearance of main groups of complex organism. This was confirmed by the fossil record. Along the support by an apparent diversification of various living things, including phytoplankton, calcimicrobes and also animals. 580 million years before this, most life forms were basic, made out of individual cells occasionally sorted out into colonies. The Cambrian explosion can be said to happen in waves. The initial, a co-evolutionary

largest mass extinction in the Earth’s history, and there were two “peak” dying times during this period, separated my hundreds of thousands of years. The Ordovician is characterised by sea life, so creatures such as brachiopods, graptolites and trilobite populations were severely diminished. An ice age is said to be responsible for the death (endangerdspeciesinternational.org, 2011). The Late Devonian mass extinction is well-known for having one of the most drastic extinction rates. During this extinction

The movie Jurassic Park is based on scientists trying to successfully extracting dinosaur DNA from the thorax, cloning it, and breeding a variety of dinosaurs. Everything took place in a remote village of Costa Rica. As a plot unfold, it becomes very clear that the Velociraptor is the most dangerous of them all. John Hammond, the man who started it all, made his project more cost efficient by using a few personnel as possible in the park. However, the park never got the chance to open, due to the

1. a) What are the major global events that occurred in the Proterozoic? (3) Three global events occurred during the Proterozoic: The oxygen revolution: During the Proterozoic, biotic system were being established, which gave rise to biomass of the prokaryotic organisms like the “benthic and planktonic photosynthesizing organisms” Due to the vast developing diversity of environment, organisms could well adapt to these various environments, which increased the input of oxygen on Earth. Hence

The earth has been around for 4.6 billion years, and over this time 99.9% of all of the species that have existed on earth have gone extinct. (Barnosky, et al) Palaeontologists characterize mass extinctions as times in Earth’s history when the Earth loses more than three-quarters of its species in a geologically short period of time. This has occurred 5 times over the past 540 million years, and scientists are now suggesting it is happening a 6th time. We are in the midst of a sixth mass extinction

Sarah Hall, 1000680872 September 23, 2014 Lab 1: Don Valley Brickyard Short Pre-Lab Report 1. The geology of Ontario is divided into three layers of rock. The first layer, Precambrian Canadian Shield rocks, is composed of mainly igneous and metamorphic rocks from the Precambrian Eon. This layer is the eldest at approximately 3-0.8x109 years old and is therefore the bottom-most layer (L). Although this layer is largely found in the Canadian Shield region of Ontario, glacial erratics from the

were created, and evolved. In Precambrian, bacteria were the main living organism. But the Precambrian also includes the seapen and the jellyfish. In the Paleozoic era, also known as the age of ocean or sea animals that include the shark, fish, and trilobite. The Mesozoic era was the age of dinosaurs, but also consisted of birds and mammals. The final era is Cenozoic, which is the time period in which the mammals began to evolve, and populate the Earth, also sea life evolved. The geologic time scale

The Permian Time frame was the last time of the Paleozoic Time. Enduring from 299 million to 251 million years back, it took after the Carboniferous Time frame and went before the Triassic Time frame. By the early Permian, the two-extraordinary mainland’s of the Paleozoic, Gondwana and Euramerica, had crashed to frame the supercontinent Pangaea. Pangaea was formed like a thickened letter "C." The best bend of the "C" comprised of landmasses that would later wind up present-day Europe and Asia. North

communities. Groups that lived on the seafloor and filtered organic material from the water for nourishment suffered the greatest extinction. Those include corals, shelled in-vertebrates, and a variety of sea lilies. Others marine groups includes trilobites, zooplankton and snails. Even though these species died in the water, living organisms on land were not much better off. Terrestrial vertebrates and insects both experienced a big loss in each of their groups. Also suffering a big loss was the insect