Peteinosphaeridium |
Peteinosphaeridium trifurcatum
|
Nd |
Ordovician |
|
Peteinosphaeridium |
Peteinosphaeridium trifurcatum
|
Nd |
Ordovician |
|
Peteinosphaeridium |
Peteinosphaeridium velatum
|
Nd |
Early Ordovician |
|
Peteinosphaeridium |
Peteinosphaeridium xiphopterum
|
Nd |
Early Ordovician |
|
Pheoclosterium |
Pheoclosterium
|
Nd |
Nd |
|
Pheoclosterium |
Pheoclosterium fuscinulaegerum
|
Nd |
Caradocian |
|
Phoenisphaeridium |
Phoenisphaeridium
|
Nd |
Nd |
|
Phoenisphaeridium |
Phoenisphaeridium interpositum
|
Nd |
Nd |
|
Phoenisphaeridium |
Phoenisphaeridium involutum
|
Nd |
Nd |
|
Picostella |
Picostella
|
Nd |
Nd |
|
Picostella |
Picostella perforata
|
Nd |
Late Arenigian |
Early Llanvirnian |
Pictonicopila |
Pictonicopila
|
Nd |
Nd |
|
Pictonicopila |
Pictonicopila dinae
|
Nd |
Early Llandoverian |
|
Pictonicopila |
Pictonicopila polymorpha
|
Nd |
Ordovician |
|
Pilasporites |
Pilasporites
|
Nd |
Nd |
|
Pilasporites |
Pilasporites plurigenus
|
Nd |
Permian |
|
Piliferosphaera |
Piliferosphaera
|
Nd |
Nd |
|