Dasydiacrodium |
Dasydiacrodium singulare
|
USSR(Baltic) |
Late Cambrian |
|
Leiosphaeridia |
Leiosphaeridia pestovii
|
USSR(Baltic) |
Late Ordovician |
|
Lophodiacrodium |
Lophodiacrodium rotundum
|
USSR(Baltic) |
Late Ordovician |
|
Cymatiogalea |
Cymatiogalea membrasnacea
|
USSR(Baltic) |
Late Cambrian |
|
Lophodiacrodium |
Lophodiacrodium gibbosum
|
USSR(Baltic) |
Late Cambrian |
|
Baltisphaeridium |
Baltisphaeridium spectatissimum
|
USSR(Baltic) |
Middle Cambrian |
|
Acanthodiacrodium |
Acanthodiacrodium brevispinum
|
USSR(Baltic) |
Early Ordovician |
|
Acanthodiacrodium |
Acanthodiacrodium curvispinum
|
USSR(Baltic) |
Early Ordovician |
|
Acanthodiacrodium |
Acanthodiacrodium denticulatum
|
USSR(Baltic) |
Early Ordovician |
|
Acanthodiacrodium |
Acanthodiacrodium echinatum
|
USSR(Baltic) |
Early Ordovician |
|
Acanthodiacrodium |
Acanthodiacrodium hirtum
|
USSR(Baltic) |
Early Ordovician |
|
Acanthodiacrodium |
Acanthodiacrodium meonanthum
|
USSR(Baltic) |
Early Ordovician |
|
Acanthodiacrodium |
Acanthodiacrodium quadrangulare
|
USSR(Baltic) |
Early Ordovician |
|
Acanthodiacrodium |
Acanthodiacrodium simplissimum
|
USSR(Baltic) |
Early Ordovician |
|
Acanthodiacrodium |
Acanthodiacrodium spinellosum
|
USSR(Baltic) |
Early Ordovician |
|
Acanthodiacrodium |
Acanthodiacrodium subrotundum
|
USSR(Baltic) |
Early Ordovician |
|
Acanthodiacrodium |
Acanthodiacrodium subscabrum
|
USSR(Baltic) |
Early Ordovician |
|