RNames - Relation: 276
| Name 1 | Normalograptus extraordinarius - Bio_Graptolite / Biostratigraphy - 1 - North America |
|---|---|
| Name 2 | Hirnantian - Regio_Stage / Regional Standard - 3 - United Kingdom |
| Belongs to | No |
RNames - Relation #276: List of References
| First Author | Year | Title | Link | Action |
|---|---|---|---|---|
| Webby, B. D. et al. | 2004 | Stratigraphic framework and time slices | https://www.zotero.… |