RNames - Scheme: Ordovician time slices (Rassmussen et al., 2019) (11)
Binning results
| Structured Name | Oldest | Youngest |
|---|---|---|
| Yuhong | Dw3 | Sa2 |
| Yunoyag | Fl3 | Dw3 |
| Yushanian | Dp1 | Dp1 |
| Zahořany | Ka1 | Ka1 |
| Zanclean | Ka3 | Hi2 |
| Zatupo | Ka1 | Ka1 |
| Zebra Cliffs | Ka3 | Ka3 |
| Zeliszkella toledana | Dw3 | Dw3 |
| Zhaqu | Fl1 | Fl2 |
| Zhoujiaxi | Hi2 | Hi2 |
| Zhuozishan | Dw2 | Dw2 |
| Zifangzhuang | Tr1 | Fl3 |
| Zini | Fl3 | Dp1 |
| Zitai | Fl3 | Dw1 |
| Zotzeshan | Dp1 | Dw1 |