Leiosphaeridia |
Leiosphaeridia britannica
|
Nd |
Nd |
|
Leiosphaeridia |
Leiosphaeridia cambriensis
|
Nd |
Nd |
|
Leiosphaeridia |
Leiosphaeridia chytroeides
|
Nd |
Nd |
|
Leiosphaeridia |
Leiosphaeridia chytroeides
|
England(Yorkshire) |
Oxfordian |
|
Leiosphaeridia |
Leiosphaeridia communis
|
USSR(Baltic) |
Late Ordovician |
|
Leiosphaeridia |
Leiosphaeridia conglutinata
|
USSR(Pre-Baltic) |
Proterozoic |
Middle Ordovician |
Leiosphaeridia |
Leiosphaeridia cryptogranulosa
|
Canada(Alberta) |
Late Devonian |
|
Leiosphaeridia |
Leiosphaeridia deflandrei
|
Nd |
Nd |
|
Leiosphaeridia |
Leiosphaeridia diaphania
|
Canada(Alberta) |
Late Devonian |
|
Leiosphaeridia |
Leiosphaeridia disca
|
USSR |
Late Silurian |
|
Leiosphaeridia |
Leiosphaeridia eisenackii
|
USSR(Pre-Baltic) |
Early Ordovician |
Middle Ordovician |
Leiosphaeridia |
Leiosphaeridia fastigatirugosa
sp. nov. |
Canada(Alberta) |
Late Devonian |
|
Leiosphaeridia |
Leiosphaeridia faveolata
|
USSR(Pre-Baltic) |
Early Cambrian |
Late Cambrian |
Leiosphaeridia |
Leiosphaeridia fragilis
|
Nd |
Nd |
|
Leiosphaeridia |
Leiosphaeridia globosa
|
England |
Late Cretaceous |
|
Leiosphaeridia |
Leiosphaeridia granulifera
|
Nd |
Nd |
|
Leiosphaeridia |
Leiosphaeridia granulosa
|
Nd |
Nd |
|