Genus Monotrematosphaeridium
- Species total:
- 12
- Age range:
- 4100 - 395 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Monotrematosphaeridium ovalum | Tremadocian | Arenigian |
|
| Monotrematosphaeridium dysoris | Tremadocian | Tremadocian |
|
| Monotrematosphaeridium crassum | Late Sinian | Late Sinian |
|
| Monotrematosphaeridium simplex | Sinian | Sinian |
|
| Monotrematosphaeridium quadratum | Sinian | Sinian |
|
| Monotrematosphaeridium oblongum | Sinian | Sinian |
|
| Monotrematosphaeridium fengyangenense | Sinian | Sinian |
|
| Monotrematosphaeridium sp.2 | Late Precambrian | Late Precambrian |
|
| Monotrematosphaeridium asperum | Precambriam | Early Cambrian |
|
| Monotrematosphaeridium rotundum | Precambriam | Precambriam |
|
| Monotrematosphaeridium sp | Early Precambrian | Early Precambrian |
|
| Monotrematosphaeridium | Precambriam | Silurian |
|