Tanuchitina |
Tanuchitina ontariensis
|
Canada(Ontario) |
Middle Ordovician |
|
Taugourdochitina |
Taugourdochitina
|
Nd |
Nd |
|
Taugourdochitina |
Taugourdochitina micracantha
|
Nd |
Nd |
|
Togachitina |
Togachitina
|
Nd |
Nd |
|
Togachitina |
Togachitina eamesi
|
Nd |
Nd |
|
Trochochitina |
Trochochitina
|
Nd |
Nd |
|
Trochochitina |
Trochochitina radiata
|
Nd |
Nd |
|
Urnichitina |
Urnichitina
|
Nd |
Nd |
|
Urnichitina |
Urnichitina rhenana
|
Nd |
Nd |
|
Urochitina |
Urochitina
|
Algeria |
Late Lochkovian |
|
Urochitina |
Urochitina
|
Czechoslovakia |
Pridolian |
|
Urochitina |
Urochitina simplex
|
Algeria |
Late Lochkovian |
|
Urochitina |
Urochitina urna
|
Czechoslovakia |
Pridolian |
|
Velatachitina |
Velatachitina
|
Tunisia |
Llandeilian |
|
Velatachitina |
Velatachitina nebulosa
|
Tunisia |
Llandeilian |
|
Vinnalochitina |
Vinnalochitina
|
England(Shropshire) |
Ludfordian |
|
Vinnalochitina |
Vinnalochitina granosa
|
England(Shropshire) |
Ludfordian |
|