Part A
The Quaternary Period
The International Commission on Stratigraphy now recognizes three periods in the Cenozoic Era: the Paleogene, Neogene, and the Quaternary. The period of geologic time in which we currently live is the Quaternary Period and began only a few million years ago.
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Figure 15-2. The official ICS geologic time scale used worldwide (left) and its Quaternary section (right). See HERE for a PDF of the 2020/03 version. |
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Quaternary Geologic Time
One last review our geologic time scale to get familiar with the Quaternary Period. As you know, it is a simplified geologic time scale constructed from the 2020/03 ICS time scale is shown in Figure 15-3. It is not drawn to scale as its focus is including all of the Periods of the Phanerozoic Eon and all of the Epochs of the Cenozoic Era.
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Figure 15-3. Geologic time chart compiled from the 2020/03 ICS version. |
* IMPORTANT *
Using the PDF link above, print a hard-copy version of this chart for use in this lab.
Refer to the simplified geologic time chart in Figure 15-3 to answer Quiz Me! questions A01 through A03.
