Peteinosphaeridium |
Peteinosphaeridium hymenoferum
|
Nd |
Tremadocian |
Ashgillian |
Peteinosphaeridium |
Peteinosphaeridium hystrichoreticulatum
|
Nd |
Tremadocian |
Ashgillian |
Peteinosphaeridium |
Peteinosphaeridium trifurcatum
|
Nd |
Tremadocian |
Ashgillian |
Peteinosphaeridium |
Peteinosphaeridium trifurcatum
|
Nd |
Tremadocian |
Ashgillian |
Baltisphaeridium |
Baltisphaeridium digitiforme
|
Nd |
Tremadocian |
Ashgillian |
Baltisphaeridium |
Baltisphaeridium diploporum
|
Nd |
Tremadocian |
Ashgillian |
Baltisphaeridium |
Baltisphaeridium hirsutoides
|
Nd |
Tremadocian |
Ashgillian |
Baltisphaeridium |
Baltisphaeridium longispinosum
|
Nd |
Tremadocian |
Ashgillian |
Baltisphaeridium |
Baltisphaeridium mochtiense
|
Nd |
Tremadocian |
Ashgillian |
Baltisphaeridium |
Baltisphaeridium multipilosum
|
Nd |
Tremadocian |
Ashgillian |
Baltisphaeridium |
Baltisphaeridium plicatispinae
|
Nd |
Tremadocian |
Ashgillian |
Goniosphaeridium |
Goniosphaeridium piliferum
|
Nd |
Tremadocian |
Ashgillian |
Goniosphaeridium |
Goniosphaeridium polygonale
|
Nd |
Tremadocian |
Ashgillian |
Hystrichosphaeridium |
Hystrichosphaeridium wimanii
|
Nd |
Tremadocian |
Ashgillian |
Peteinosphaeridium |
Peteinosphaeridium breviradiatum
|
Nd |
Tremadocian |
Ashgillian |
Multiplicisphaeridium |
Multiplicisphaeridium digitatum
|
Nd |
Tremadocian |
Wenlockian |
Multiplicisphaeridium |
Multiplicisphaeridium raspum
|
Nd |
Tremadocian |
Emsian |