Nucellosphaeridium |
Nucellosphaeridium deunffii
|
Baltic |
Silurian |
|
Micrhystridium |
Micrhystridium
|
France(Paris Basin) |
Senonian |
|
Kildinella |
Kildinella
|
USSR |
Precambriam |
|
Kildinella |
Kildinella jacutica
|
USSR |
Nd |
|
Kildinella |
Kildinella rifeica
|
USSR |
Precambriam |
|
Kildinella |
Kildinella exsculpta
|
USSR |
Nd |
|
Leiosphaeridia |
Leiosphaeridia jacutica
|
USSR |
Nd |
|
Leiosphaeridia |
Leiosphaeridia rifeica
|
USSR |
Precambriam |
|
Leiosphaeridia |
Leiosphaeridia exculpta
|
USSR |
Nd |
|
Tasmanites |
Tasmanites rifejicus
|
USSR |
Precambriam |
|
Leiominuscula |
Leiominuscula minuta
|
USSR |
Nd |
|
Leiosphaeridia |
Leiosphaeridia minutissima
|
USSR |
Nd |
|
Leiosphaeridia |
Leiosphaeridia jacutica
|
USSR |
Nd |
|
Leiosphaeridia |
Leiosphaeridia crassa
|
USSR |
Precambriam |
|
Chuaria |
Chuaria circularis
|
USSR |
Precambriam |
|
Leiominuscula |
Leiominuscula rugosa
|
USSR |
Precambriam |
|
Leiosphaeridia |
Leiosphaeridia simplex
|
USSR |
Precambriam |
|