A presentation on Geological Time Preiod Devonian,Carboniferous and Permian Period (PPT)
The Geological Time Scale (GTS) is a system used by geologists and paleontologists to describe the timing and relationships of events in Earth’s history. It divides Earth’s 4.6-billion-year history into various time intervals based on major geological and biological events.
The Geological Time Scale divides Earth’s history into eons, eras, periods, epochs, and ages based on significant geological and biological events.
Devonian Period (419 – 359 million years ago)
Known as the “Age of Fishes,” it saw the rise of diverse fish species, the first forests, and early amphibians. Major extinctions occurred at its end.
Carboniferous Period (359 – 299 million years ago)
Divided into the Mississippian and Pennsylvanian subperiods, it featured vast coal-forming swamp forests, diverse amphibians, and the first reptiles. Significant evolutionary developments included early amniotes.
Permian Period (299 – 252 million years ago)
Characterized by the formation of the supercontinent Pangaea, rise of early reptiles and synapsids, and ended with the largest mass extinction in Earth’s history, the Permian-Triassic extinction.
