Acanthodiacrodium |
Acanthodiacrodium sp
|
Czechoslovakia |
Acadian |
|
Leiosphaeridia |
Leiosphaeridia sp
|
Czechoslovakia |
Acadian |
|
Cymatiogalea |
Cymatiogalea ianischewskyi
|
Czechoslovakia |
Acadian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium vologdense
|
Czechoslovakia |
Acadian |
|
Acanthodiacrodium |
Acanthodiacrodium costatum
|
Czechoslovakia |
Early Ordovician |
Middle Ordovician |
Arbusculidium |
Arbusculidium filamentosum
|
Czechoslovakia |
Arenigian |
|
Arbusculidium |
Arbusculidium stephanum
sp. nov. |
Czechoslovakia |
Late Arenigian |
Llanvirnian |
Baltisphaeridium |
Baltisphaeridium klabavense
|
Czechoslovakia |
Late Arenigian |
Llanvirnian |
Aureotesta |
Aureotesta clathrata
|
Czechoslovakia |
Late Arenigian |
Llanvirnian |
Coryphidium |
Coryphidium bohemicum
|
Czechoslovakia |
Late Arenigian |
Llanvirnian |
Striatotheca |
Striatotheca principalis
|
Czechoslovakia |
Late Arenigian |
Llanvirnian |
Estiastra |
Estiastra improcera
|
Czechoslovakia |
Late Arenigian |
Llanvirnian |
Baltisphaera |
Baltisphaera ternata
|
Czechoslovakia |
Late Arenigian |
Llanvirnian |
Dicrodiacrodium |
Dicrodiacrodium normale
|
Czechoslovakia |
Late Arenigian |
Llanvirnian |
Schizodiacrodium |
Schizodiacrodium ramiferum
|
Czechoslovakia |
Late Arenigian |
Llanvirnian |
Veryhachium |
Veryhachium irroratum
|
Czechoslovakia |
Late Arenigian |
Llanvirnian |
Polygonium |
Polygonium spinosum
|
Czechoslovakia |
Late Arenigian |
Llanvirnian |