# Geologic Time Line Events & Man **URL:** \ **Category:** Factual Questions\ **Created:** [May 19, 2003, 12:56pm UTC](https://boards.straightdope.com/t/geologic-time-line-events-man/176226 "2003-05-19T12:56:10Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Jinx](https://avatars.discourse-cdn.com/v4/letter/j/c6cbf5/32.png) [@Jinx](https://boards.straightdope.com/u/Jinx)\ **Post date:** [May 19, 2003, 12:56pm UTC](https://boards.straightdope.com/t/geologic-time-line-events-man/176226/1 "2003-05-19T12:56:10Z")
I’m seeking a good Geologic Time Line with details about what life forms came when. Specifically, I need details about the Mississippian and Pennsylvanian Periods. Also, I am seeking some information about when primitive man and and the earliest primates appeared. I have conflicting reports of earliest man appearing in the Tertiary Period vs. the Quaternary Period (both of the Cenozoic Era). Google has helped somewhat, but I thought there’d be more detail. I was hoping some SDopers might have some additional info or favorite websites about this… Also, what are/were trilobytes? Thanks, - Jinx ---
**Author:** ![Q.E.D](https://avatars.discourse-cdn.com/v4/letter/q/51bf81/32.png) [@Q.E.D](https://boards.straightdope.com/u/Q.E.D)\ **Post date:** [May 19, 2003, 1:01pm UTC](https://boards.straightdope.com/t/geologic-time-line-events-man/176226/2 "2003-05-19T13:01:39Z")
Google “trilobite”. The correct spelling helps. ---
**Author:** ![eburacum45](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/eburacum45/32/8690_2.png) [@eburacum45](https://boards.straightdope.com/u/eburacum45)\ **Post date:** [May 19, 2003, 5:18pm UTC](https://boards.straightdope.com/t/geologic-time-line-events-man/176226/3 "2003-05-19T17:18:10Z")
try this [scale](http://www.palaeos.com/Timescale/default.htm) for a start… the Pennsylvanian and Misissippian eras are combined in English and other timescales into the [Carboniferous](http://www.palaeos.com/Paleozoic/Carboniferous/Carboniferous.htm) * * * Sci-fi worldbuilding at [http://www.orionsarm.com/main.html](http://www.orionsarm.com/main.html)