Stephanodiacrodium |
Stephanodiacrodium stephanum
|
Czechoslovakia |
Arenigian |
|
Stephanodiacrodium |
Stephanodiacrodium stephanum
|
Czechoslovakia |
Late Arenigian |
Llanvirnian |
Striatotheca |
Striatotheca microrugulata
|
Czechoslovakia |
Arenigian |
Llanvirnian |
Striatotheca |
Striatotheca principalis
|
Czechoslovakia |
Arenigian |
Llanvirnian |
Striatotheca |
Striatotheca rarirrugulata
|
Czechoslovakia |
Llanvirnian |
|
Striatotheca |
Striatotheca rugulata
|
Czechoslovakia |
Late Arenigian |
Early Llanvirnian |
Striatotheca |
Striatotheca transformata
|
Czechoslovakia |
Llanvirnian |
|
Sylvanidium |
Sylvanidium operculatum
|
Czechoslovakia |
Llanvirnian |
|
Tetraniveum |
Tetraniveum arenigum
|
Czechoslovakia |
Arenigian |
|
Tunisphaeridium |
Tunisphaeridium eligmosum
|
Czechoslovakia |
Arenigian |
|
Tylotopalla |
Tylotopalla digitifera
|
Czechoslovakia |
Ordovician |
|
Tylotopalla |
Tylotopalla traumatica
|
Czechoslovakia |
Ordovician |
|
Veryhachium |
Veryhachium calandrae
|
Czechoslovakia |
Ordovician |
|
Veryhachium |
Veryhachium fictusistriatum
|
Czechoslovakia |
Ordovician |
|
Veryhachium |
Veryhachium piliferum
|
Czechoslovakia |
Llanvirnian |
|
Veryhachium |
Veryhachium saccatum
|
Czechoslovakia |
Llanvirnian |
|