Oppilatala |
Oppilatala insolita
|
Nd |
Nd |
|
Oppilatala |
Oppilatala insolita
|
Worldwide |
Late Aeronian |
Sheinwoodian |
Oppilatala |
Oppilatala monterrosae
|
Worldwide |
Late Telychian |
Sheinwoodian |
Oppilatala |
Oppilatala sparsa
|
Nd |
Nd |
|
Ordovicidium |
Ordovicidium elegantulum
|
Nd |
Nd |
|
Ordovicidium |
Ordovicidium heteromorphicum
|
Worldwide |
Soudleyan |
Ashgillian |
Ordovicidium |
Ordovicidium nudum
|
Nd |
Nd |
|
Orthosphaeridium |
Orthosphaeridium chondrodora
|
England |
Caradocian |
|
Orthosphaeridium |
Orthosphaeridium chondrodora
|
Worldwide |
Onnian |
Ashgillian |
Orthosphaeridium |
Orthosphaeridium insculptum
|
Worldwide |
Actonian |
Ashgillian |
Orthosphaeridium |
Orthosphaeridium rectangulare
|
Worldwide |
Caradocian |
Ashgillian |
Orthosphaeridium |
Orthosphaeridium ternatum
|
Nd |
Late Arenigian |
Llandeilian |
Orthosphaeridium |
Orthosphaeridium ternatum
|
Worldwide |
Caradocian |
|
Ozotobrachion |
Ozotobrachion palidodigitatus
|
Nd |
Gedinnian |
Emsian |
Palacanthus |
Palacanthus ledanoisii
|
Canada(Ontario) |
Givetian |
|
Palacanthus |
Palacanthus ledanoisii
|
Nd |
Emsian |
Famennian |
Pardaminela |
Pardaminela crassicosta
|
Saudi Arabia |
Ludlovian |
|