The geological time scale is not the type of thing that has advantages or disadvantages as such. It is rather a statement of our best understanding of the various periods and timeline of the earth's long history. It is subject to update and refinement as knowledge and new data dictate. A fun representation follows. read more
The geologic time scale and the names of the various time periods is fundamental to understanding geology. This page may be out of date. Save your draft before refreshing this page. read more
The geological time scale is not the type of thing that has advantages or disadvantages as such. It is rather a statement of our best understanding of the various periods and timeline of the earth’s long history. It is subject to update and refinement as knowledge and new data dictate. A fun representation follows. read more
Best Answer: First, because the length of time spanned by the GTS has to be represented in a way other than just a calendar. It's broken into different time units commensurate to important events that happened -- sometimes geologic, sometimes biologic, sometimes both. read more