Gneudnaella |
Gneudnaella
|
Nd |
Nd |
|
Gneudnaella |
Gneudnaella psilata
|
Nd |
Frasnian |
|
Gondisphaeridium |
Gondisphaeridium
|
Nd |
Nd |
|
Gondisphaeridium |
Gondisphaeridium leve
|
Nd |
Early Permian |
|
Goniolopadion |
Goniolopadion
|
Nd |
Nd |
|
Goniolopadion |
Goniolopadion prolixum
|
Nd |
Givetian |
|
Goniomorpha |
Goniomorpha
|
Nd |
Nd |
|
Goniomorpha |
Goniomorpha rara
|
Nd |
Early Tremadocian |
|
Goniosphaeridium |
Goniosphaeridium
|
Nd |
Nd |
|
Goniosphaeridium |
Goniosphaeridium adligans
|
Nd |
Late Cambrian |
|
Goniosphaeridium |
Goniosphaeridium akrochordum
|
Nd |
Tremadocian |
|
Goniosphaeridium |
Goniosphaeridium ancyreum
|
Nd |
Late Llandoverian |
|
Goniosphaeridium |
Goniosphaeridium angulosum
|
USSR(Pre-Baltic) |
Middle Cambrian |
|
Goniosphaeridium |
Goniosphaeridium apiculatum
|
Nd |
Early Ordovician |
|
Goniosphaeridium |
Goniosphaeridium balticum
|
Nd |
Early Ordovician |
|
Goniosphaeridium |
Goniosphaeridium calandrae
|
Nd |
Early Llanvirnian |
|
Goniosphaeridium |
Goniosphaeridium canningia
|
Nd |
Ordovician |
|