Multiplicisphaeridium |
Multiplicisphaeridium perirregulare
|
Ohio |
Late Devonian |
Early Mississippian |
Multiplicisphaeridium |
Multiplicisphaeridium perirregulare
sp. nov. |
Ohio |
Late Devonian |
Early Mississippian |
Polygonium |
Polygonium gracile
|
Argentina(Santiago) |
Late Gothlandian |
|
Polygonium |
Polygonium spinosum
|
Algeria |
Late Ordovician |
|
Priscotheca |
Priscotheca minima
|
Algeria |
Tremadocian |
|
Priscotheca |
Priscotheca raia
|
Algeria |
Tremadocian |
|
Protoleiosphaeridium |
Protoleiosphaeridium granulosum
|
Canada(Alberta) |
Late Devonian |
|
Protoleiosphaeridium |
Protoleiosphaeridium minutum
|
Canada(Alberta) |
Late Devonian |
|
Protoleiosphaeridium |
Protoleiosphaeridium papillatum
|
Canada(Alberta) |
Late Devonian |
|
Protoleiosphaeridium |
Protoleiosphaeridium pristinum
|
India(Uttar Pradesh) |
Cambrian |
|
Pustulisphaeridium |
Pustulisphaeridium levibrachium
|
Ohio |
Famennian |
|
Uncinisphaera |
Uncinisphaera lappa
|
Ohio |
Famennian |
|