Stelliferidium |
Stelliferidium trifidum
|
Wales(Carmarthenshire) |
Early Arenigian |
|
Striatotheca |
Striatotheca frequens
|
Wales(Caernarvonshire) |
Llanvirnian |
|
Striatotheca |
Striatotheca principalis
|
England(Cumberland) |
Late Arenigian |
|
Striatotheca |
Striatotheca principalis
|
Wales(Caernarvonshire) |
Late Arenigian |
|
Striatotheca |
Striatotheca principalis
|
England(Cumberland) |
Late Arenigian |
|
Striatotheca |
Striatotheca principalis
|
England(Cumberland) |
Late Arenigian |
Late Arenigian |
Striatotheca |
Striatotheca prolixa
|
Wales(Carmarthenshire) |
Early Arenigian |
|
Striatotheca |
Striatotheca prolixa
|
England(Cumberland) |
Early Arenigian |
|
Striatotheca |
Striatotheca quieta
|
Wales(Caernarvonshire) |
Early Llanvirnian |
|
Striatotheca |
Striatotheca rarirrugulata
|
England(Cumberland) |
Late Arenigian |
|
Striatotheca |
Striatotheca rarirrugulata
|
Wales(Caernarvonshire) |
Late Arenigian |
|
Striatotheca |
Striatotheca rarirrugulata
|
Wales(Carmarthenshire) |
Late Arenigian |
|
Striatotheca |
Striatotheca sp
|
England(Cumberland) |
Early Arenigian |
|
Striatotheca |
Striatotheca sp
|
Wales(Carmarthenshire) |
Early Arenigian |
|
Tetraniveum |
Tetraniveum arenigum
|
England(Cumberland) |
Early Arenigian |
|
Tetraniveum |
Tetraniveum arenigum
|
Wales(Carmarthenshire) |
Early Arenigian |
|
Timofeevia |
Timofeevia phosphoritica
|
England(Cumberland) |
Early Arenigian |
|