Navifusa |
Navifusa multistriata
|
Brazil(Maranhao) |
Middle Devonian |
Late Devonian |
Navifusa |
Navifusa navicula
|
USSR(Estonian SSR) |
Middle Ordovician |
|
Navifusa |
Navifusa scrutilla
|
Kentucky |
Late Wenlockian |
|
Navifusa |
Navifusa tenuis
|
USSR(Estonian SSR) |
Late Ordovician |
|
Navifusa |
Navifusa teretis
|
Oklahoma |
Middle Ordovician |
|
Peteinosphaeridium |
Peteinosphaeridium bergstroemii
|
W.Germany |
Late Llanvirnian |
|
Peteinosphaeridium |
Peteinosphaeridium dissolutum
|
W.Germany |
Late Llanvirnian |
|
Peteinosphaeridium |
Peteinosphaeridium sibiricum
|
USSR(Siberia) |
Late Ordovician |
|
Polyedryxium |
Polyedryxium robustum
|
Ohio |
Famennian |
|
Stelliferidium |
Stelliferidium apertum
|
W.Germany |
Late Llanvirnian |
|
Tasmanites |
Tasmanites finkii
|
Brazil |
Middle Devonian |
|
Tasmanites |
Tasmanites sommeri
|
Brazil(Para) |
Middle Devonian |
|
Tetradinium |
Tetradinium arenigum
|
Czechoslovakia |
Arenigian |
|
Tetraniveum |
Tetraniveum
|
Czechoslovakia |
Arenigian |
|
Tetraniveum |
Tetraniveum arenigum
|
Czechoslovakia |
Arenigian |
|
Tylotopalla |
Tylotopalla aniae
|
Algeria |
Silurian |
|
Uncinisphaera |
Uncinisphaera
|
Ohio |
Late Devonian |
Early Mississippian |