Paleozoic
| Paleozoic Era 541 - 251.902 million years ago | |
Key events in the Paleozoic -550 — – -500 — – -450 — – -400 — – -350 — – -300 — – -250 — – An approximate timescale o key Paleozoic events. Axis scale: millions o years ago. |
The Paleozoic (or Palaeozoic) Era, accordin tae scientists, is the earliest o three geologic eras o the Phanerozoic Eon, frae 541 tae 251.902 million years aby.