Ancyrospora |
Ancyrospora sp.A Brid.& Radf.,1970
sp. nov. |
Virginia |
Middle Frasnian |
Late Frasnian |
Aneurospora |
Aneurospora semizonalis
|
Maryland |
Middle Frasnian |
Late Frasnian |
Aneurospora |
Aneurospora semizonalis
|
West Virginia |
Middle Frasnian |
Late Frasnian |
Aneurospora |
Aneurospora semizonalis
|
Virginia |
Middle Frasnian |
Late Frasnian |
Archaeotriletes |
Archaeotriletes aduncus
|
Maryland |
Middle Frasnian |
Late Frasnian |
Archaeotriletes |
Archaeotriletes aduncus
|
West Virginia |
Middle Frasnian |
Late Frasnian |
Archaeotriletes |
Archaeotriletes aduncus
|
Virginia |
Middle Frasnian |
Late Frasnian |
Archaeozonotriletes |
Archaeozonotriletes notatus
|
Maryland |
Middle Frasnian |
Late Frasnian |
Archaeozonotriletes |
Archaeozonotriletes notatus
|
West Virginia |
Middle Frasnian |
Late Frasnian |
Archaeozonotriletes |
Archaeozonotriletes notatus
|
Virginia |
Middle Frasnian |
Late Frasnian |
Biharisporites |
Biharisporites maguashensis
|
Maryland |
Middle Frasnian |
Late Frasnian |
Biharisporites |
Biharisporites maguashensis
|
West Virginia |
Middle Frasnian |
Late Frasnian |
Biharisporites |
Biharisporites maguashensis
|
Virginia |
Middle Frasnian |
Late Frasnian |
Brochotriletes |
Brochotriletes sp
|
Maryland |
Middle Frasnian |
Late Frasnian |
Brochotriletes |
Brochotriletes sp
|
West Virginia |
Middle Frasnian |
Late Frasnian |
Brochotriletes |
Brochotriletes sp
|
Virginia |
Middle Frasnian |
Late Frasnian |
Calamospora |
Calamospora atava
|
Maryland |
Middle Frasnian |
Late Frasnian |