| Name | From | To | Age range |
|---|---|---|---|
| Unnamed form 1 | Middle Proterozoic | Middle Proterozoic |
|
| Unnamed form a | Late Precambrian | Late Precambrian |
|
| Unnamed form a Amar.& Bert.,1997 | Early Proterozoic | Early Proterozoic |
|
| Unnamed form b | Early Riphean | Early Riphean |
|
| Unnamed form b Amar.& Bert.,1997 | Early Proterozoic | Early Proterozoic |
|
| Unnamed form b Knol.,1982 | Late Precambrian | Late Precambrian |
|
| Unnamed form c | Late Precambrian | Late Precambrian |
|
| Unnamed form d | Late Precambrian | Late Precambrian |
|
| Unnamed form e | Late Riphean | Late Riphean |
|
| Unnamed form e Knol.,1982 | Late Precambrian | Late Precambrian |
|
| Unnamed sp | Nd | Nd |
|
| Unnamed sp. Zang & Walt.,1992 | Middle Cambrian | Middle Cambrian |
|
| Unnamed sp.1 | Middle Pliocene | Middle Pliocene |
|
| Unnamed sp.10 | Middle Pliocene | Middle Pliocene |
|
| Unnamed sp.11 | Middle Pliocene | Middle Pliocene |
|
| Unnamed sp.12 | Middle Pliocene | Middle Pliocene |
|
| Unnamed sp.13 | Middle Pliocene | Middle Pliocene |
|