Mesoproterozoic

The Mesoproterozoic is a geological time period that occurred between about 1.6 billion and 1 billion years ago. It is part of the Proterozoic Eon, which is known for significant developments in Earth's history, including the formation of stable continental landmasses and the appearance of early multicellular life. During the Mesoproterozoic, Earth experienced gradual changes in its atmosphere and biosphere, with the emergence of more complex organisms and a rise in oxygen levels, setting the stage for the evolution of more advanced life forms in the subsequent eras.