Trachysphaeridium |
Trachysphaeridium dalongkouense
|
Nd |
Late Precambrian |
|
Trachysphaeridium |
Trachysphaeridium decorum
|
Nd |
Nd |
|
Trachysphaeridium |
Trachysphaeridium ellipsoidale
|
Nd |
Proterozoic |
|
Trachysphaeridium |
Trachysphaeridium etouchangense
|
Nd |
Late Precambrian |
|
Trachysphaeridium |
Trachysphaeridium filamentum
|
Nd |
Nd |
|
Trachysphaeridium |
Trachysphaeridium foramine
|
USSR(Kirghiz SSR) |
Early Vendian |
|
Trachysphaeridium |
Trachysphaeridium formosum
|
Nd |
Wenlockian |
Ludlovian |
Trachysphaeridium |
Trachysphaeridium gibbosum
|
Nd |
Early Cambrian |
|
Trachysphaeridium |
Trachysphaeridium granosum
|
USSR(Kirghiz SSR) |
Early Vendian |
|
Trachysphaeridium |
Trachysphaeridium granulatum
|
Nd |
Proterozoic |
|
Trachysphaeridium |
Trachysphaeridium hyalinum
|
Nd |
Sinian |
|
Trachysphaeridium |
Trachysphaeridium irregularium
|
Nd |
Late Precambrian |
|
Trachysphaeridium |
Trachysphaeridium jayanense
|
Nd |
Nd |
|
Trachysphaeridium |
Trachysphaeridium lachandinum
|
Nd |
Riphean |
|
Trachysphaeridium |
Trachysphaeridium laminaritum
|
Nd |
Vendian |
|
Trachysphaeridium |
Trachysphaeridium laufeldii
|
Nd |
Late Riphean |
Vendian |
Trachysphaeridium |
Trachysphaeridium leve
|
Nd |
Middle Riphean |
Late Riphean |