Striatotheca |
Striatotheca transformata
|
Nd |
Late Arenigian |
Early Llanvirnian |
Striatotheca |
Striatotheca trapeziformis
|
Nd |
Arenigian |
Early Llanvirnian |
Striatotheca |
Striatotheca triangulata
|
Nd |
Late Arenigian |
Early Llanvirnian |
Striatotheca |
Striatotheca trigonia
|
Nd |
Late Llanvirnian |
|
Sylvanidium |
Sylvanidium paucibrachium
|
Nd |
Early Ashgillian |
|
Symplassosphaeridium |
Symplassosphaeridium cambriense
|
Nd |
Acadian |
|
Tasmanites |
Tasmanites martinssonii
|
Nd |
Tremadocian |
Ludlovian |
Tasmanites |
Tasmanites medius
|
Nd |
Ashgillian |
Gedinnian |
Tasmanites |
Tasmanites minutus
|
Nd |
Caradocian |
Llandoverian |
Tasmanites |
Tasmanites noremii
|
Nd |
Nd |
|
Tasmanites |
Tasmanites trematus
|
Nd |
Arenigian |
Early Llanvirnian |
Tasmanites |
Tasmanites verrucosus
|
Nd |
Middle Caradocian |
Early Llandoverian |
Tectitheca |
Tectitheca additionalis
|
Nd |
Late Arenigian |
Early Llanvirnian |
Tectitheca |
Tectitheca contracta
|
Nd |
Late Llanvirnian |
|
Tectitheca |
Tectitheca filigera
|
Nd |
Late Llanvirnian |
|
Tectitheca |
Tectitheca spinifera
|
Nd |
Late Llanvirnian |
|
Tectitheca |
Tectitheca valida
|
Nd |
Late Llanvirnian |
|