Synsphaeridium |
Synsphaeridium solidium
|
Nd |
Vendian |
|
Synsphaeridium |
Synsphaeridium sorediforme
|
Nd |
Early Paleozoic |
|
Synsphaeridium |
Synsphaeridium spinosum
|
Nd |
Silurian |
|
Synsphaeridium |
Synsphaeridium switjasium
|
Nd |
Early Cambrian |
|
Synsphaeridium |
Synsphaeridium tenuatum
|
Nd |
Vendian |
|
Synsphaeridium |
Synsphaeridium tuberculatum
|
Nd |
Wenlockian |
|
Tabulimicrocystis |
Tabulimicrocystis
|
Nd |
Nd |
|
Tabulimicrocystis |
Tabulimicrocystis acuminatus
|
Nd |
Early Cenomanian |
|
Tabulimicrocystis |
Tabulimicrocystis tetragonis
|
Nd |
Late Valanginian |
|
Tapajonites |
Tapajonites
|
Nd |
Nd |
|
Tapajonites |
Tapajonites mosesii
|
Nd |
Devonian |
|
Tapajonites |
Tapajonites roxoi
|
Nd |
Middle Devonian |
|
Tariccrodium |
Tariccrodium
|
Nd |
Nd |
|
Tariccrodium |
Tariccrodium bifidum
|
Nd |
Late Tremadocian |
Early Arenigian |
Tariccrodium |
Tariccrodium elegantulum
|
Nd |
Late Tremadocian |
Early Arenigian |
Tarsisphaeridium |
Tarsisphaeridium
|
Nd |
Nd |
|
Tarsisphaeridium |
Tarsisphaeridium geminiporatum
|
Nd |
Senonian |
|