Genus Trachysphaeridium
- Species total:
- 122
- Age range:
- 4100 - 54.5 MA (obsolete dating)
- IRMNG:
- find
Name | From | To | Age range |
---|---|---|---|
Trachysphaeridium timofeevii | Precambriam | Middle Cambrian |
|
Trachysphaeridium leve | Precambriam | Middle Cambrian |
|
Trachysphaeridium sp.2 Ouya.et al,1974 | Late Proterozoic | Cambrian |
|
Trachysphaeridium pulchriforme | Sinian | Cambrian |
|
Trachysphaeridium mediale | Late Precambrian | Cambrian |
|
Trachysphaeridium kryshtofovichii | Late Proterozoic | Cambrian |
|
Trachysphaeridium sp.1 Ouya.et al,1974 | Late Proterozoic | Cambrian |
|
Trachysphaeridium sp.3 Ouya.et al,1974 | Late Proterozoic | Cambrian |
|
Trachysphaeridium sp. Ouya.et al,1974 | Late Proterozoic | Cambrian |
|
Trachysphaeridium myctum | Late Proterozoic | Cambrian |
|
Trachysphaeridium gibbosum | Late Proterozoic | Cambrian |
|
Trachysphaeridium nevelense | Late Proterozoic | Cambrian |
|
Trachysphaeridium minor | Precambriam | Arenigian |
|
Trachysphaeridium simplex | Precambriam | Arenigian |
|
Trachysphaeridium scabrum | Precambriam | Llanvirnian |
|
Trachysphaeridium debilum | Late Precambrian | Baoto |
|
Trachysphaeridium tschapomicus | Late Caradocian | Ashgillian |
|