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S2 Geologic Time 01: Geologic Time Scale

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Nicholas Gawronski

on 24 February 2015

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Transcript of S2 Geologic Time 01: Geologic Time Scale

Introduction
WELCOME! To Nicholas Gawronski's Tour On
"Fossils of the Great Wooly Mammoth."
Physical Characteristics
In this video it explains the Physical Characteristics of the magnificent Wooly Mammoth it explains why the mammoth has small ears and small back legs find out more by watching!
A full grown Woolly mammoth stood around 10 - 12 feet high at the shoulder and weighed in at 6 - 8 tons. Despite connotations of the word "mammoth" indicating immense proportions, the Woolly mammoth is actually not the largest mammoth that ever lived. The Imperial mammoth was the largest and the North American Columbian mammoth was even larger than the Woolly mammoth. The Woolly mammoth was about the same size as a present day Indian elephant but with a layer of fat and fur.
Frozen remains and old fossils of woolly mammoths have been found in the northern parts of Siberia and Alaska, with far fewer finds in the latter. Such remains are mostly found above the Arctic Circle, in permafrost.
Locations
Family: Elephantidae, What this means is that this is the group the mammoths means, a.k.a "family" which improvises a groups of animals within in order. The Elephantidae are a taxonomic family, collectively elephants and mammoths. These are terrestrial large mammals with a trunk and tusks. Most genera and species in the family are extinct. Only two genera, Loxodonta and Elephas, are living.
Related Organisms
The earliest known proboscideans, the clade which contains the elephants, existed about 55 million years ago around the Tethys Sea area. The closest relatives of the Proboscidea are the sirenians and the hyraxes. The family Elephantidae is known to have existed six million years ago in Africa, and includes the living elephants and the mammoths. Among many now extinct clades, the mastodon is only a distant relative of the mammoths, and part of the separate Mammutidae family which diverged 25 million years before the mammoths evolved.
Biological Evolution and Phylogeny
Full transcript