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Genus Symplassosphaeridium

Species total:
32
Age range:
4100 - 230 MA (obsolete dating)
IRMNG:
find
Name From To Age range
Symplassosphaeridium undosum Early Riphean Late Riphean
Symplassosphaeridium parvum Late Precambrian Late Riphean
Symplassosphaeridium bulbosum Precambriam Late Proterozoic
Symplassosphaeridium sp.B Salu.et al,1971 Middle Proterozoic Late Proterozoic
Symplassosphaeridium sp.A Salu.et al,1971 Middle Proterozoic Late Proterozoic
Symplassosphaeridium specusum Late Proterozoic Cambrian
Symplassosphaeridium dictyotum Late Proterozoic Cambrian
Symplassosphaeridium sp. Gauc.et al,1996 Middle Vendian Late Cambrian
Symplassosphaeridium sp. Ilie.,1974 Precambriam Cambrian
Symplassosphaeridium simplex Late Proterozoic Cambrian
Symplassosphaeridium incrustatum Middle Precambrian Arenigian
Symplassosphaeridium sp. Germ.et al,1989 Late Riphean Early Paleozoic
Symplassosphaeridium subcoalitum Precambriam Silurian
Symplassosphaeridium biglume Late Riphean Silurian
Symplassosphaeridium sp Precambriam Siegenian
Symplassosphaeridium tumidulum Early Proterozoic Carboniferous
Symplassosphaeridium Precambriam Permian