Silurian

S**ulirian Time Period!**
The silurian time period had animals such as the shark.The sharks have been around for approximately 409 million years! Now thats crazy! There was also Earth underwent considerable changes that had important repercussions for the environment and life within it. The Silurian witnessed a relative stabilization of the earth's general climate, ending the previous pattern of erratic climatic fluctuations. One result of these changes was the melting of large glacial formations. The weather was so much warmer in the silurian tiume period.It is also in the Silurian that we find the first clear evidence of life on land. While it is possible that plants and animals first moved onto the land in the Ordovician, fossils of life from that period are harder to explain.