Favososphaeridium |
Favososphaeridium jixianense
|
Nd |
Proterozoic |
|
Favososphaeridium |
Favososphaeridium kozlowskii
|
Nd |
Early Gothlandian |
|
Favososphaeridium |
Favososphaeridium michailovskyi
|
Nd |
Early Ordovician |
|
Favososphaeridium |
Favososphaeridium scandicum
|
Nd |
Middle Cambrian |
|
Favososphaeridium |
Favososphaeridium variabile
|
Nd |
Torridonian |
|
Favosphaeridium |
Favosphaeridium
|
Nd |
Nd |
|
Fermoria |
Fermoria
|
Nd |
Nd |
|
Fermoria |
Fermoria capsella
|
Nd |
Late Precambrian |
|
Fermoria |
Fermoria granulosa
|
Nd |
Late Precambrian |
|
Fermoria |
Fermoria minima
|
Nd |
Late Precambrian |
|
Fermoria |
Fermoria tripartita
|
Nd |
Nd |
|
Ferromia |
Ferromia
|
Nd |
Nd |
|
Ferromia |
Ferromia filosa
|
Nd |
Early Llanvirnian |
|
Filicitriletes |
Filicitriletes
|
Nd |
Nd |
|
Filicitriletes |
Filicitriletes compactus
|
Nd |
Permian |
|
Filisphaeridium |
Filisphaeridium
|
Nd |
Nd |
|
Filisphaeridium |
Filisphaeridium aspersum
|
Nd |
Oligocene |
|