Dactylofusa |
Dactylofusa maranhensis
|
Brazil(Paraiba) |
Llandoverian |
|
Acrum |
Acrum jasperense
|
Canada(Alberta) |
Tremadocian |
|
Aryballomorpha |
Aryballomorpha albertana
|
Canada(Alberta) |
Tremadocian |
|
Aryballomorpha |
Aryballomorpha grootaertii
|
Canada(Alberta) |
Tremadocian |
|
Athabascaella |
Athabascaella playfordii
|
Canada(Alberta) |
Tremadocian |
Early Arenigian |
Athabascaella |
Athabascaella rossii
|
Canada(Alberta) |
Tremadocian |
|
Athabascaella |
Athabascaella sunwaptana
|
Canada(Alberta) |
Tremadocian |
|
Buedingiisphaeridium |
Buedingiisphaeridium tremadocum
|
Canada(Alberta) |
Early Tremadocian |
|
Corollasphaeridium |
Corollasphaeridium wilcoxianum
|
Canada(Alberta) |
Early Tremadocian |
|
Cymatiogalea |
Cymatiogalea
|
Canada(Alberta) |
Late Cambrian |
Tremadocian |
Lua |
Lua erdaopuziana
|
Canada(Alberta) |
Tremadocian |
|
Rhopaliophora |
Rhopaliophora palmata
|
Canada(Alberta) |
Late Tremadocian |
Early Arenigian |
Rhopaliophora |
Rhopaliophora pilata
|
Canada(Alberta) |
Late Tremadocian |
Early Arenigian |
Riculasphaera |
Riculasphaera fissa
|
Canada(Alberta) |
Gedinnian |
|
Saharidia |
Saharidia downiei
|
Canada(Alberta) |
Early Tremadocian |
|
Vulcanisphaera |
Vulcanisphaera africana
|
Canada(Alberta) |
Late Cambrian |
Early Tremadocian |
Goniosphaeridium |
Goniosphaeridium akrochordum
|
Canada(Alberta) |
Late Cambrian |
Tremadocian |