The Silurian period is a division of geological time that occurred between the end of the Ordovician period and the beginning of the Devonian period. It is named after the ancient Celtic tribe of the Silures in Wales, where rocks from this period were first studied.
During the Silurian period, the Earth's climate was relatively stable, with warm temperatures and high sea levels. The period saw the continued movement of tectonic plates and the formation of mountain ranges, such as the Caledonian Orogeny in present-day Scotland and Scandinavia.
The Silurian period marked a significant diversification of marine life. Early fish-like vertebrates, such as the jawless fish, began to appear in the oceans. The first coral reefs also emerged during this time, contributing to the development of diverse marine ecosystems.