Tanuchitina |
Tanuchitina anticostiensis
|
Canada(Arctic) |
Late Ordovician |
|
Cyathochitina |
Cyathochitina campanulaeformis
|
Canada(Arctic) |
Ashgillian |
|
Hercochitina |
Hercochitina crickmayi
|
Canada(Arctic) |
Late Ordovician |
|
Ancyrochitina |
Ancyrochitina ellisbayensis
|
Canada(Arctic) |
Late Ordovician |
|
Nevadachitina |
Nevadachitina extraordinarius
|
Canada(Arctic) |
Late Ordovician |
|
Belonechitina |
Belonechitina gamachiana
|
Canada(Arctic) |
Late Ordovician |
|
Belonechitina |
Belonechitina hirsuta
|
Canada(Arctic) |
Ashgillian |
|
Cyathochitina |
Cyathochitina jenkinsi
|
Canada(Arctic) |
Ashgillian |
|
Fustichitina |
Fustichitina langei
|
Canada(Arctic) |
Ashgillian |
|
Lagenochitina |
Lagenochitina maxima
|
Canada(Arctic) |
Late Tremadocian |
|
Ordochitina |
Ordochitina nevadensis
|
Canada(Arctic) |
Late Ordovician |
|
Belonechitina |
Belonechitina nevillensis
|
Canada(Arctic) |
Ashgillian |
|
Hercochitina |
Hercochitina normalis
|
Canada(Arctic) |
Late Ordovician |
|
Nevadachitina |
Nevadachitina perscuptus
|
Canada(Arctic) |
Late Ordovician |
|
Conochitina |
Conochitina pirum
|
Canada(Arctic) |
Ashgillian |
|
Conochitina |
Conochitina poumoti
|
Canada(Arctic) |
Ashgillian |
|
Conochitina |
Conochitina robusta
|
Canada(Arctic) |
Ashgillian |
|