Protoleiosphaeridium |
Protoleiosphaeridium microsaetosum
|
Canada(Alberta) |
Givetian |
Famennian |
Cymatiosphaera |
Cymatiosphaera perimembrana
|
Canada(Alberta) |
Givetian |
Frasnian |
Micrhystridium |
Micrhystridium vigintispinum
|
Canada(Alberta) |
Frasnian |
|
Polyedryxium |
Polyedryxium rabians
|
Canada(Alberta) |
Givetian |
|
Polyedryxium |
Polyedryxium pharaone
|
Canada(Alberta) |
Frasnian |
Famennian |
Navifusa |
Navifusa bacilla
|
Canada(Alberta) |
Frasnian |
Famennian |
Polyedryxium |
Polyedryxium embudum
|
Canada(Alberta) |
Frasnian |
Famennian |
Stellinium |
Stellinium octoaster
|
Canada(Alberta) |
Frasnian |
Famennian |
Polyedryxium |
Polyedryxium decorum
|
Canada(Alberta) |
Frasnian |
Famennian |
Polyedryxium |
Polyedryxium multifrons
|
Canada(Alberta) |
Frasnian |
Famennian |
Polyedryxium |
Polyedryxium rabians
|
Canada(Alberta) |
Frasnian |
Famennian |
Cymatiosphaera |
Cymatiosphaera pentaster
|
Canada(Alberta) |
Frasnian |
Famennian |
Multiplicisphaeridium |
Multiplicisphaeridium sprucegrovense
|
Canada(Alberta) |
Frasnian |
Famennian |
Protoleiosphaeridium |
Protoleiosphaeridium orbiculatum
|
Canada(Alberta) |
Frasnian |
Famennian |
Solisphaeridium |
Solisphaeridium spinoglobosum
|
Canada(Alberta) |
Frasnian |
Famennian |
Multiplicisphaeridium |
Multiplicisphaeridium ramispinosum
|
Canada(Alberta) |
Frasnian |
|
Veryhachium |
Veryhachium trispinosum
|
Canada(Alberta) |
Frasnian |
|