Duvernaysphaera |
Duvernaysphaera aranaides
|
Africa |
Llandoverian |
Ludlovian |
Schismatosphaeridium |
Schismatosphaeridium magnum
|
Africa |
Emsian |
|
Striatotheca |
Striatotheca rarirrugulata
|
Africa |
Late Arenigian |
Early Llanvirnian |
Striatotheca |
Striatotheca rugulata
|
Africa |
Late Arenigian |
Llanvirnian |
Helios |
Helios aranaides
|
Africa |
Llandoverian |
Ludlovian |
Acanthodiacrodium |
Acanthodiacrodium tremadocum
|
Africa(Sahara) |
Tremadocian |
|
Polyedryxium |
Polyedryxium decorum
|
Africa(Sahara) |
Givetian |
|
Polyedryxium |
Polyedryxium multifrons
|
Africa(Sahara) |
Devonian |
|
Polyplanifer |
Polyplanifer exoticum
|
Africa(Sahara) |
Emsian |
|
Triangulina |
Triangulina alargada
|
Africa(Sahara) |
Emsian |
|
Polyplanifer |
Polyplanifer exoticum
|
Africa(Sahara) |
Couvinian |
|
Saharidia |
Saharidia downiei
|
Africa(Sahara) |
Early Tremadocian |
Middle Tremadocian |
Schismatosphaeridium |
Schismatosphaeridium perforatum
|
Africa(Sahara) |
Gedinnian |
Siegenian |
Stellinium |
Stellinium octoaster
|
Africa(Sahara) |
Middle Devonian |
Frasnian |
Eupoikilofusa |
Eupoikilofusa cantabrica
|
Africa(Sahara) |
Late Ludlovian |
Early Gedinnian |
Eupoikilofusa |
Eupoikilofusa striatifera
|
Africa(Sahara) |
Late Llandoverian |
Early Gedinnian |
Leiofusa |
Leiofusa bernesgae
|
Africa(Sahara) |
Llandoverian |
Early Gedinnian |