Salopella |
Salopella
|
Nd |
Nd |
|
Segestrespora |
Segestrespora
|
Nd |
Nd |
|
Segestrespora |
Segestrespora laevigata
|
Nd |
Ashgillian |
Aeronian |
Segestrespora |
Segestrespora membranifera
|
Wales |
Early Rhuddanian |
|
Segestrespora |
Segestrespora membranifera
|
Nd |
Caradocian |
Rhuddanian |
Segestrespora |
Segestrespora rugosa
|
Wales |
Early Rhuddanian |
|
Segestrespora |
Segestrespora rugosa
|
Nd |
Caradocian |
Rhuddanian |
Sphaerocarpos |
Sphaerocarpos
|
Nd |
Nd |
|
Spinosa |
Spinosa monads
|
Nd |
Gedinnian |
|
Streelispora |
Streelispora
|
Nd |
Nd |
|
Streelispora |
Streelispora newportensis
|
England(Herefordshire) |
Early Gedinnian |
|
Streelispora |
Streelispora newportensis
|
England(Worcestershire) |
Early Gedinnian |
|
Streelispora |
Streelispora newportensis
|
England(Shropshire) |
Middle Gedinnian |
|
Strophomorpha |
Strophomorpha
|
Nd |
Nd |
|
Strophomorpha |
Strophomorpha ovata
|
Nd |
Rhuddanian |
Early Aeronian |
Synorisporites |
Synorisporites
|
Nd |
Homerian |
Gedinnian |
Synorisporites |
Synorisporites libycus
|
Libya |
Late Homerian |
|