Ammonidium |
Ammonidium sprucegrovense
|
Canada(Alberta) |
Frasnian |
|
Baltisphaeridium |
Baltisphaeridium microfurcatum
|
Canada(Alberta) |
Frasnian |
|
Baltisphaeridium |
Baltisphaeridium paleozoicum
|
Canada(Alberta) |
Frasnian |
|
Craterisphaeridium |
Craterisphaeridium inuncans
|
Canada(Alberta) |
Frasnian |
|
Craterisphaeridium |
Craterisphaeridium sprucegrovense
|
Canada(Alberta) |
Frasnian |
|
Hercyniana |
Hercyniana sprucegrovensis
|
Canada(Alberta) |
Frasnian |
|
Multiplicisphaeridium |
Multiplicisphaeridium sprucegrovense
|
Canada(Alberta) |
Frasnian |
|
Pertusisphaeridium |
Pertusisphaeridium
|
Canada(Alberta) |
Frasnian |
|
Pertusisphaeridium |
Pertusisphaeridium dispar
sp. nov. |
Canada(Alberta) |
Frasnian |
|