Helios |
Helios aranaides
|
Argentina |
Late Gothlandian |
|
Leiofusa |
Leiofusa jurassica
|
Australia |
Late Jurassic |
|
Bacisphaeridium |
Bacisphaeridium bacifer
|
Baltic |
Middle Ordovician |
Silurian |
Leiofusa |
Leiofusa fusiformis
|
Baltic |
Ordovician |
|
Veryhachium |
Veryhachium bacifer
|
Baltic |
Middle Ordovician |
Silurian |
Acanthodiacrodium |
Acanthodiacrodium angustum
|
Belgium |
Cambrian |
|
Acanthodiacrodium |
Acanthodiacrodium angustum
|
Belgium |
Early Tremadocian |
|
Stellinium |
Stellinium belgicum
|
Belgium |
Early Tremadocian |
|
Acanthodiacrodium |
Acanthodiacrodium constrictum
|
Belgium |
Tremadocian |
|
Acanthodiacrodium |
Acanthodiacrodium constrictum
|
Belgium |
Arenigian |
|
Acanthodiacrodium |
Acanthodiacrodium constrictum
|
Belgium |
Llanvirnian |
|
Acanthodiacrodium |
Acanthodiacrodium costatum
|
Belgium |
Early Caradocian |
|
Dicrodiacrodium |
Dicrodiacrodium normale
|
Belgium |
Early Caradocian |
|
Acanthodiacrodium |
Acanthodiacrodium tasselii
|
Belgium |
Wenlockian |
Ludlovian |
Arbusculidium |
Arbusculidium filamentosum
|
Belgium |
Wenlockian |
|
Baltisphaeridium |
Baltisphaeridium massilum
|
Belgium |
Late Wenlockian |
Early Ludlovian |
Striatotheca |
Striatotheca confecta
|
Belgium |
Late Wenlockian |
Early Ludlovian |