Rimosotetras |
Rimosotetras problematica
sp. nov. |
Wales(Dyfed) |
Early Rhuddanian |
|
Rimosotetras |
Rimosotetras problematica
|
Wales(Dyfed) |
Hirnantian |
Rhuddanian |
Rimosotetras |
Rimosotetras problematica
|
Wales(Dyfed) |
Hirnantian |
Rhuddanian |
Rugosphaera |
Rugosphaera cerebra
|
Wales(Dyfed) |
Early Rhuddanian |
|
Segestrespora |
Segestrespora
|
Pennsylvania |
Llandoverian |
|
Segestrespora |
Segestrespora laevigata
|
Wales(Dyfed) |
Hirnantian |
Early Rhuddanian |
Segestrespora |
Segestrespora laevigata
|
Pennsylvania |
Llandoverian |
|
Segestrespora |
Segestrespora membranifera
|
Wales(Dyfed) |
Hirnantian |
Early Rhuddanian |
Segestrespora |
Segestrespora membranifera
|
Pennsylvania |
Llandoverian |
|
Segestrespora |
Segestrespora rugosa
|
Wales(Dyfed) |
Hirnantian |
Early Rhuddanian |
Segestrespora |
Segestrespora rugosa
|
Wales(Dyfed) |
Hirnantian |
Early Rhuddanian |
Segestrespora |
Segestrespora rugosa
|
Pennsylvania |
Llandoverian |
|
Segestrespora |
Segestrespora sp.A Burg.,1991
sp. nov. |
Wales(Dyfed) |
Rhuddanian |
|
Segestrespora |
Segestrespora sp.A Burg.,1991
sp. nov. |
Wales(Dyfed) |
Hirnantian |
Early Rhuddanian |
Strophomorpha |
Strophomorpha ovata
|
Wales(Dyfed) |
Late Rhuddanian |
|
Tetrahedraletes |
Tetrahedraletes
|
Wales(Dyfed) |
Early Gothlandian |
Pennsylvanian |
Tetrahedraletes |
Tetrahedraletes medinensis
|
Wales(Dyfed) |
Early Gothlandian |
Pennsylvanian |