Retrieving "Phanerozoic Eons" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

  1. Paleozoic

    Linked via "Phanerozoic Eons"

    The Paleozoic Era, meaning "ancient life," is the earliest of the Phanerozoic Eons, spanning from approximately 538.8 million years ago (Ma) to 251.9 Ma. It represents a pivotal period in Earth's history, marking the widespread diversification of multicellular life, the colonization of land by plants and animals, and culminating in the formation of the supercontinent Pangaea and the largest known mass extinction event. The era is co…