# Are stratigraphic tags useful?

I have found myself in the last few months tagging or retagging some questions with time-based tags (namely and ). I realize now that nobody else did, and thus was wondering what is the community thought on them: do you think there is a need for them?

The reason I added them (and therefore think they are needed) is that I often look (on Google Scholar for instance) for epoch-specific information and thus limit my search using stratigraphic terms, and I naturally thought of doing the same here eventually.

• I agree, and think this is actually a very important step to take to better index the questions here. – user889 Sep 18 '14 at 16:19