Permian Period Timeline
Nov. 28, 2024
Permian extinction | Overview & Facts | Britannica Trilobite Geological Time Scale Paleozoic Era (541 million years ago to 252 million years ago) | GeoKansas Permian Period Timeline
Nov. 28, 2024
Permian extinction | Overview & Facts | Britannica Trilobite Geological Time Scale Paleozoic Era (541 million years ago to 252 million years ago) | GeoKansas Permian Period Timeline