History Of The Ordovician Period

The Ordovician Period, which is best known for its diverse marine invertebrates, began 488.3 million years ago and ended 443.7 million years ago. As mentioned, this period is famous for its variety of marine life but also for the major Cambrian-Ordovician extinction event and Ordovician-Silurian mass extinction which began and ended the Ordovician Period. These extinction occurred nearly 488 million years ago and 443 million years ago and eliminated many brachiopods, conodonts, and intensely lowered the number of trilobite species. Although there is not a lot of information on how these extinctions came to be, it may have had something to do with previous extinctions since they so closely preceded these.
In general, the climate of the Ordovician