(Geology) A period consisting of approximately the last 2 million years of earth history, encompassing both the Pleistocene and the Holocene epochs.
The geologic period ranging from two million years ago to the present. It is divided into two epochs: the Holocene (10,000 years ago to the present) and the Pleistocene (two million to 10,000 years ago).
The most recent geologic period of the Cenozoic Era, the Quaternary began 2 million years ago with the growth of northern hemisphere continental glaciers and the ice age. PICTURE
The second period of the Cenozoic era containing the Pleistocene epoch and the Holocene epoch and dating from 1.8 million years to the present.
last period of the geologic time scale, commonly subdivided into Pleistocene and Holocene Epochs. Began 1.6 million years BP and characterized by frequent and rapid environmental changes. The evolution of the genus Homo (man) is probably the single most important development of this period, thus the term Anthropogene is used by some for this period.
The Quaternary period, "The Age of Man" (1.8 million years ago to the present), is the most recent period of geological time.