Micrhystridium |
Micrhystridium aster
|
Spitsbergen |
Rhaetian |
|
Micrhystridium |
Micrhystridium circulum
|
Spitsbergen |
Rhaetian |
|
Micrhystridium |
Micrhystridium recurvatum
|
Spitsbergen |
Rhaetian |
|
Baltisphaeridium |
Baltisphaeridium polytrichum
|
Spitsbergen |
Rhaetian |
|
Baltisphaeridium |
Baltisphaeridium infulatum
|
Spitsbergen |
Rhaetian |
|
Baltisphaeridium |
Baltisphaeridium debilispinum
|
Spitsbergen |
Rhaetian |
|
Baltisphaeridium |
Baltisphaeridium sp
|
Spitsbergen |
Rhaetian |
|
Veryhachium |
Veryhachium nasicum
|
Spitsbergen |
Rhaetian |
|
Metaleiofusa |
Metaleiofusa bispinosa
|
Spitsbergen |
Rhaetian |
|
Cymatiosphaera |
Cymatiosphaera eupeplos
|
Spitsbergen |
Rhaetian |
|
Cymatiosphaera |
Cymatiosphaera sp.A Wall,1965
sp. nov. |
Spitsbergen |
Rhaetian |
|
Pterospermopsis |
Pterospermopsis foveolata
|
Spitsbergen |
Rhaetian |
|
Circulina |
Circulina meyeriana
|
Spitsbergen |
Middle Jurassic |
Late Jurassic |
Corollina |
Corollina torosa
|
Spitsbergen |
Middle Jurassic |
Late Jurassic |
Cerebropollenites |
Cerebropollenites mesozoicus
|
Spitsbergen |
Middle Jurassic |
Late Jurassic |
Gonyaulacysta |
Gonyaulacysta jurassica
|
Spitsbergen |
Middle Jurassic |
Late Jurassic |
Gonyaulacysta |
Gonyaulacysta jurassica
|
Spitsbergen |
Middle Jurassic |
Late Jurassic |