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The Cambrian Period
Part 1 of Paper
.... first period of the Paleozoic
Era, it lasted from 570 million years ago to 500 million years ago, 70 million
years. It¹s very important because it corresponds with the firs t appearance of
abundant fossils especially Trilobites, which characterizes a succeeding point
in time. During the Cambrian Period the lapetus Oc.... Part 2 of Paper
.... valve
shellfish that resemble clams. During the Cambrian corals and chrinoids
emerged. Chrinoids are sea animals of the class chrinoidea like the sea lily
and the feather star. The only plant life of the Cambrian period were
primitive algae.
.... |
| Number of words: 231 - Approximate pages: 1 |
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