Ordovician Time Period

This time period is from the Paleozoic era.

Time periods in the Paleozoic time era in order are: Cambrian, Ordovician , Silurian , Devonian , Carboniferous , and Permian.

Scientist think that the Cambrian time period ended because of volcanic eruptions which caused the lack of oxygen thus creating the Ordovician time period.

The Ordovician time period had high sea levels, and the land was pretty much flat and near sea level. Most life on Earth was aquatic animals, and some insects were on the beaches.

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• the ordovician time period began 488.3 mya
• And it ended 443.7 mya
• This time period was 45 million years

The supercontinent of Pannotia broke up and the continents drifted away from each other, but plate tectonics made some of the continents drift together again into another supercontinent, Gondwana. At the North and South Poles, there was ice.

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ANIMALS

CRABS

SHARKS

MILIPEDES

SPIDERS

SCORPIANS

SNAILS

CLAMS

TRILOBITES- MARINE ARTHOPOD

OSTRACODEEM- ARMORED JAWLESS FISH

CONODONT- TOOTHY EEL LIKE CREATURES

BRACHIOPODS

CORAL REEFS- APPEARED FOR THE 1ST TIME IN HISTORY

There are many more animals, but too many to name them all.

PLANTS

LIVERWORTS

MOSS

FUNGI

This time period ended because ice formed all over the earth, so many aquatic animals died creating the Silurian time period.

INFO

• http://www.ucmp.berkeley.edu/ordovician/ordovician.php
• http://scienceforkids.kidipede.com/geology/eras/ordovician.htm
• Images and search engine Google