Lagenochitina |
Lagenochitina prussica
|
Belgium |
Ashgillian |
|
Hercochitina |
Hercochitina sp
|
Canada(Quebec) |
Ashgillian |
|
Conochitina |
Conochitina gamachiana
|
Canada(Quebec) |
Late Ashgillian |
|
Ancyrochitina |
Ancyrochitina longispina
|
Canada(Quebec) |
Late Ashgillian |
|
Conochitina |
Conochitina bulmani
|
Canada(Quebec) |
Late Ashgillian |
|
Plectochitina |
Plectochitina concinna
|
Canada(Quebec) |
Ashgillian |
|
Tanuchitina |
Tanuchitina anticostiensis
|
Canada(Quebec) |
Late Ashgillian |
|
Coronochitina |
Coronochitina taugourdeaui
|
Canada(Quebec) |
Hirnantian |
|
Tanuchitina |
Tanuchitina bergstroemi
|
Canada(Quebec) |
Hirnantian |
|
Tanuchitina |
Tanuchitina bergstroemi
|
England |
Rawtheyan |
|
Calpichitina |
Calpichitina lenticularis
|
Europe |
Middle Caradocian |
|
Armoricochitina |
Armoricochitina nigerica
|
Europe |
Middle Caradocian |
|
Plectochitina |
Plectochitina sylvanica
|
Libya |
Ashgillian |
|
Sphaerochitina |
Sphaerochitina lepta
|
Libya |
Middle Ashgillian |
Late Ashgillian |
Ancyrochitina |
Ancyrochitina merga
|
Libya |
Early Ashgillian |
|
Armoricochitina |
Armoricochitina nigerica
|
Libya |
Late Ashgillian |
|
Calpichitina |
Calpichitina lenticularis
|
Libya |
Middle Caradocian |
Ashgillian |