Comasphaeridium |
Comasphaeridium filamentosum
|
|
Paleocene |
|
Solisphaeridium |
Solisphaeridium filamentosum
|
|
Paleocene |
|
Neoveryhachium |
Neoveryhachium neocarminae
|
Alabama |
Early Gothlandian |
|
Vulcanisphaera |
Vulcanisphaera africana
|
Algeria |
Tremadocian |
|
Evittia |
Evittia remota
|
Algeria |
Wenlockian |
Late Gothlandian |
Evittia |
Evittia remota
|
Algeria |
Devonian |
|
Veryhachium |
Veryhachium longispinosum
|
Algeria |
Late Ordovician |
|
Veryhachium |
Veryhachium subglobosum
|
Algeria |
Late Ordovician |
|
Veryhachium |
Veryhachium tenuimacerium
|
Algeria |
Late Ordovician |
|
Micrhystridium |
Micrhystridium gracile
|
Argentina |
Late Gothlandian |
|
Chalaziosphaeridium |
Chalaziosphaeridium tenuum
|
Argentina |
Wenlockian |
|
Pulvinosphaeridium |
Pulvinosphaeridium tenua
|
Argentina |
Wenlockian |
|
Oligosphaeridium |
Oligosphaeridium tubulatum
|
Argentina |
Oligocene |
|
Estiastra |
Estiastra tenua
|
Argentina |
Wenlockian |
|
Micrhystridium |
Micrhystridium argentinum
|
Argentina |
Late Gothlandian |
|
Micrhystridium |
Micrhystridium tubulatum
|
Argentina |
Oligocene |
|
Polygonium |
Polygonium gracile
|
Argentina |
Late Gothlandian |
|