RNames - Relation: 4
| Name 1 | Upper Ordovician - Series / Chronostratigraphy - 4 - Global |
|---|---|
| Name 2 | Hirnantian - Stage / Chronostratigraphy - 5 - Global |
| Belongs to | No |
RNames - Relation #4: List of References
| First Author | Year | Title | Link | Action |
|---|---|---|---|---|
| Bergström, S.M | 2009 | The new chronostratigraphic classification of the Ordovician System a… | https://www.zotero.… | |
| International Commission on Stratigraphy | 2020 | International Chronostratigraphic Chart | http:// |