Leiofusa |
Leiofusa tumida
|
Indiana |
Nd |
|
Leoniella |
Leoniella carminae
|
Spain |
Ludlovian |
Early Gedinnian |
Leoniella |
Leoniella carminae
|
Tunisia |
Late Gothlandian |
|
Leoniella |
Leoniella carminae
|
Africa(Sahara) |
Ludlovian |
Gedinnian |
Lophodiacrodium |
Lophodiacrodium
|
W.Germany(Niedersachsen) |
Vendian |
Cambrian |
Lophodiacrodium |
Lophodiacrodium bulbiferum
|
Nd |
Silurian |
|
Lophodiacrodium |
Lophodiacrodium pepino
|
Alabama |
Tarannon |
|
Lophodiacrodium |
Lophodiacrodium pepino
|
Florida |
Middle Gothlandian |
Late Gothlandian |
Lophodiacrodium |
Lophodiacrodium pepino
|
Spain |
Early Llandoverian |
Gedinnian |
Lophodiacrodium |
Lophodiacrodium pepino
|
Spain |
Late Wenlockian |
Emsian |
Lophodiacrodium |
Lophodiacrodium pepino
|
Spain |
Late Llandoverian |
|
Micrhystridium |
Micrhystridium alpernii
|
Nd |
Silurian |
|
Micrhystridium |
Micrhystridium chattonii
|
Nd |
Silurian |
|
Micrhystridium |
Micrhystridium comatum
|
Nd |
Silurian |
|
Micrhystridium |
Micrhystridium coronatum
|
Nd |
Silurian |
|
Micrhystridium |
Micrhystridium cortracumense
|
Nd |
Silurian |
|
Micrhystridium |
Micrhystridium eatonense
|
Nd |
Silurian |
|