Florisphaeridium |
Florisphaeridium lavidense
|
Nd |
Emsian |
|
Geron |
Geron amabilis
|
Nd |
Ludlovian |
|
Geron |
Geron gracilis
|
Nd |
Late Wenlockian |
Late Ludlovian |
Geron |
Geron guerillerus
|
Nd |
Llandoverian |
Gedinnian |
Granomarginata |
Granomarginata primitiva
|
Nd |
Georgian |
Potsdamian |
Helosphaeridium |
Helosphaeridium clavispinulosum
|
Nd |
Early Ludlovian |
|
Helosphaeridium |
Helosphaeridium latispinosum
|
Nd |
Wenlockian |
Ludlovian |
Helosphaeridium |
Helosphaeridium pseudodictyum
|
Nd |
Wenlockian |
Ludlovian |
Hemideunffia |
Hemideunffia trifurcata
|
Nd |
Wenlockian |
|
Horologinella |
Horologinella quadrispina
|
Nd |
Famennian |
Strunian |
Leiofusa |
Leiofusa algerensis
|
Nd |
Llandoverian |
Wenlockian |
Leiofusa |
Leiofusa argentina
|
Nd |
Ludlovian |
Gedinnian |
Leiofusa |
Leiofusa aspilis
|
Nd |
Early Llandoverian |
|
Leiofusa |
Leiofusa banderillae
|
Nd |
Late Llandoverian |
Emsian |
Leiofusa |
Leiofusa bernesgae
|
Nd |
Late Llandoverian |
Emsian |
Leiofusa |
Leiofusa blanca
|
Nd |
Llandoverian |
Gedinnian |
Leiofusa |
Leiofusa crassiuscula
|
Nd |
Late Llanvirnian |
|