Eras, Periods and Epochs

The Geological Timescale is split into fours Eras. These are broadly obvious from significant transitions between sequences of sedimentary formations. The Precambrian is obviously very different to everything above it.

August 23rd

Elasmotherium sibiricum

The Oligocene, an epoch in the geological timescale, is actually an ecosystem of plant and animal communities which has been destroyed, transported and buried in a world-wide flood.