Difference between revisions of "System"
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==Useful links== | ==Useful links== | ||
* [https://en.wikipedia.org/wiki/System_(stratigraphy) System] | * [https://en.wikipedia.org/wiki/System_(stratigraphy) System] | ||
| − | * [https://en.wikipedia.org/wiki/Geologic_time_scale | + | * [https://en.wikipedia.org/wiki/Geologic_time_scale#Terminology Geologic time scale] |
* [http://www.geol.umd.edu/~tholtz/G102/102bios.htm Biostratigraphy and the geologic time scale] | * [http://www.geol.umd.edu/~tholtz/G102/102bios.htm Biostratigraphy and the geologic time scale] | ||