Spinachitina |
Spinachitina makromyka
|
Ohio |
Late Ordovician |
|
Spinachitina |
Spinachitina novempopulanica
|
France(Aquitaine) |
Llandeilian |
|
Spinachitina |
Spinachitina novempopulanica
|
France(Aquitaine) |
Llandeilian |
|
Spinachitina |
Spinachitina oblonga
|
Africa(Sahara) |
Ordovician |
|
Spinachitina |
Spinachitina striata
|
Baltic |
Ordovician |
|
Stephanochitina |
Stephanochitina africana
|
Africa(Sahara) |
Eifelian |
Givetian |
Stephanochitina |
Stephanochitina decora
|
USA |
Frasnian |
Famennian |
Tanuchitina |
Tanuchitina ontariensis
|
USA |
Caradocian |
Early Llandoverian |
Urochitina |
Urochitina cervicornis
|
Europe |
Tremadocian |
Ludlovian |
Urochitina |
Urochitina globosa
|
Africa(Sahara) |
Middle Siegenian |
Middle Emsian |
Urochitina |
Urochitina homoglobosa
|
Africa(Sahara) |
Arenigian |
Caradocian |
Urochitina |
Urochitina navicula
|
Africa(Sahara) |
Middle Ludlovian |
Late Ludlovian |
Urochitina |
Urochitina simplex
|
Africa(Sahara) |
Middle Siegenian |
Middle Emsian |
Urochitina |
Urochitina verrucosa
|
Africa(Sahara) |
Middle Siegenian |
Middle Emsian |