ordovikin
Ordovikin is a term that refers to a specific geological period, the Ordovician. It is the second period of the Paleozoic Era, following the Cambrian and preceding the Silurian. The Ordovician period lasted approximately 485.4 to 443.8 million years ago. It is further subdivided into Early, Middle, and Late Ordovician epochs.
During the Ordovician, Earth's continents were arranged differently than they are today. Many landmasses were clustered
Significant evolutionary developments occurred in the Ordovician. The Great Ordovician Biodiversification Event saw a dramatic increase