Micrhystridium |
Micrhystridium inconspicuum
|
Czechoslovakia |
Arenigian |
|
Micrhystridium |
Micrhystridium stellatum
|
Czechoslovakia |
Arenigian |
|
Peteinosphaeridium |
Peteinosphaeridium bergstroemii
|
Czechoslovakia |
Arenigian |
|
Pirea |
Pirea
|
Czechoslovakia |
Arenigian |
|
Pirea |
Pirea dubia
sp. nov. |
Czechoslovakia |
Arenigian |
|
Polyedryxium |
Polyedryxium tetrahedroide
|
Czechoslovakia |
Arenigian |
|
Polygonium |
Polygonium gracile
|
Czechoslovakia |
Arenigian |
|
Priscogalea |
Priscogalea multarea
|
Czechoslovakia |
Arenigian |
|
Priscotheca |
Priscotheca complanata
|
Czechoslovakia |
Arenigian |
|
Priscotheca |
Priscotheca constricta
|
Czechoslovakia |
Arenigian |
|
Pterospermopsis |
Pterospermopsis onondagaensis
|
Czechoslovakia |
Arenigian |
|
Synsphaeridium |
Synsphaeridium gotlandicum
|
Czechoslovakia |
Arenigian |
|
Veryhachium |
Veryhachium europaeum
|
Czechoslovakia |
Arenigian |
|
Veryhachium |
Veryhachium europaeum
|
Czechoslovakia |
Arenigian |
|
Veryhachium |
Veryhachium flagelliferum
|
Czechoslovakia |
Arenigian |
|
Veryhachium |
Veryhachium helenae
|
Czechoslovakia |
Arenigian |
|
Veryhachium |
Veryhachium lairdii
|
Czechoslovakia |
Arenigian |
|