Silurian Period

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by CrafterSheep
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Silurian Period

The Silurian PeriodAlain TorresPeriod 4

The Silurian Period is a gologic period that lasted 28 years. It started about 444 million years ago and ended around 416 years ago. It is in the Paleozoic Era. In this period, coral reefs, freshwater fish, and jawed fish appeared. In the Silurian, we find the first clear evidence of life on land. Vascular plants also evolved during the Silurian period. Common Silurian fossils are trilobites, graptolites, conodonts, corals, stromatopoids, and mollusks. Anphropods like millipedes and centipedes appeared durring this period.

Silurian climate was warm and stable. The period had low continental elevations. The supercontinent, Gondwana, had drifted southward. Icecaps and glaciers melted, creating a high sea level. The base of the Silurian is set at a major extinction event when 60% of marine species became extinct.

Fossils help scienists learn about the plants and animals that lived in the past. They help them learn what enviroment they lived in, how they looked, what they ate, and what time they lived in.


Trilobite Fossil





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