Cyathochitina |
Cyathochitina novempopulanica
|
Europe |
Caradocian |
Early Llandoverian |
Cyathochitina |
Cyathochitina novempopulanica
|
France(Aquitaine) |
Llandeilian |
|
Cyathochitina |
Cyathochitina novempopulanica
|
France(Aquitaine) |
Llandeilian |
|
Cyathochitina |
Cyathochitina oblonga
|
Africa(Sahara) |
Arenigian |
Llandeilian |
Cyathochitina |
Cyathochitina oblonga
|
Africa(Sahara) |
Ordovician |
|
Cyathochitina |
Cyathochitina obtusa
|
Africa(Sahara) |
Llandoverian |
Early Gedinnian |
Cyathochitina |
Cyathochitina obtusa
|
Algeria |
Gothlandian |
Early Devonian |
Cyathochitina |
Cyathochitina regnelli
|
Europe |
Middle Tremadocian |
|
Cyathochitina |
Cyathochitina sp
|
Africa(Sahara) |
Gothlandian |
|
Cyathochitina |
Cyathochitina stentor
|
Europe |
Caradocian |
|
Cyathochitina |
Cyathochitina striata
|
Europe |
Llandeilian |
|
Cyathochitina |
Cyathochitina striata
|
Africa(Sahara) |
Ordovician |
|
Cyathochitina |
Cyathochitina striata
|
Baltic |
Ordovician |
|
Cylindrochitina |
Cylindrochitina granata
|
Europe |
Arenigian |
Llandeilian |
Desmochitina |
Desmochitina acollare
|
Baltic |
Wenlockian |
|
Desmochitina |
Desmochitina acollare
|
Europe |
Late Llandoverian |
Wenlockian |
Desmochitina |
Desmochitina bohemica
|
Czechoslovakia |
Silurian |
|