Acanthorytidodiacrodium |
Acanthorytidodiacrodium diffusum
|
Poland |
Early Ordovician |
|
Acanthorytidodiacrodium |
Acanthorytidodiacrodium echinatum
|
USSR(Estonian SSR) |
Late Cambrian |
|
Acanthorytidodiacrodium |
Acanthorytidodiacrodium lentiforme
|
USSR(Vologda) |
Middle Cambrian |
|
Acanthorytidodiacrodium |
Acanthorytidodiacrodium prolongatum
|
USSR(Irkutskaya Oblast) |
Late Cambrian |
|
Acanthorytidodiacrodium |
Acanthorytidodiacrodium prolongatum
|
USSR(Lithuanian SSR) |
Late Cambrian |
|
Acanthorytidodiacrodium |
Acanthorytidodiacrodium sp
|
USSR(Leningrad) |
Late Cambrian |
|
Acanthorytidodiacrodium |
Acanthorytidodiacrodium unigeminum
|
USSR(Estonian SSR) |
Late Cambrian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium acanthaceum
|
Poland |
Early Cambrian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium acanthaceum
|
Poland |
Late Cambrian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium acanthaceum
|
USSR(Moldavian SSR) |
Late Gothlandian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium acanthaceum
|
USSR(Irkutskaya Oblast) |
Early Cambrian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium adligans
|
USSR(Estonian SSR) |
Early Ordovician |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium bifurcatum
|
USSR(Estonian SSR) |
Early Ordovician |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium cellulare
|
USSR(Irkutskaya Oblast) |
Early Cambrian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium cuneidentatum
|
USSR(Irkutskaya Oblast) |
Early Cambrian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium dasyacanthum
|
USSR(Irkutskaya Oblast) |
Early Cambrian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium diploporum
|
USSR(Lithuanian SSR) |
Late Cambrian |
|