Guttatisphaeridium |
Guttatisphaeridium pandum
|
Ohio |
Middle Famennian |
Late Famennian |
Hapsidopalla |
Hapsidopalla chela
|
Ohio |
Givetian |
|
Hapsidopalla |
Hapsidopalla exornata
|
Canada(Ontario) |
Late Eifelian |
Middle Givetian |
Hapsidopalla |
Hapsidopalla exornata
|
Ohio |
Givetian |
|
Hapsidopalla |
Hapsidopalla exornata
|
Canada(Ontario) |
Frasnian |
Famennian |
Hapsidopalla |
Hapsidopalla invenusta
|
Ohio |
Givetian |
|
Hapsidopalla |
Hapsidopalla sannemannii
|
Canada(Ontario) |
Early Emsian |
|
Hapsidopalla |
Hapsidopalla sannemannii
|
Canada(Ontario) |
Eifelian |
Givetian |
Heteromorphidion |
Heteromorphidion echinopillum
|
Oklahoma |
Late Gedinnian |
|
Hystrichosphaeridium |
Hystrichosphaeridium ramusculosum
|
Canada(Ontario) |
Eifelian |
Givetian |
Hystrichosphaeridium |
Hystrichosphaeridium trispinosum
|
Canada(Alberta) |
Frasnian |
|
Hystrichosphaeridium |
Hystrichosphaeridium trispinosum
|
Ohio |
Givetian |
Mississippian |
Hystrichosphaeridium |
Hystrichosphaeridium trispinosum
|
Canada(Alberta) |
Givetian |
Mississippian |
Hystrichosphaeridium |
Hystrichosphaeridium trispinosum
|
Canada(Saskatchewan) |
Late Famennian |
Early Mississippian |
Hystrichosphaeridium |
Hystrichosphaeridium trispinosum
|
Canada(NWT) |
Late Famennian |
Early Mississippian |
Hystrichosphaeridium |
Hystrichosphaeridium trispinosum
|
Canada(Ontario) |
Late Siegenian |
Middle Givetian |
Induoglobus |
Induoglobus latipenniscus
|
Oklahoma |
Late Gedinnian |
|