Acanthodiacrodium |
Acanthodiacrodium varium
|
USSR(Baltic) |
Early Ordovician |
|
Baltisphaeridium |
Baltisphaeridium serratum
|
USSR(Baltic) |
Late Cambrian |
|
Baltisphaeridium |
Baltisphaeridium spinellosum
|
USSR(Baltic) |
Late Cambrian |
|
Trachydiacrodium |
Trachydiacrodium dentatum
|
USSR(Baltic) |
Late Ordovician |
|
Acanthodiacrodium |
Acanthodiacrodium aciferum
|
USSR(Baltic) |
Early Ordovician |
|
Lophodiacrodium |
Lophodiacrodium aculeatum
|
USSR(Baltic) |
Late Ordovician |
|
Lophodiacrodium |
Lophodiacrodium notatum
|
USSR(Baltic) |
Late Ordovician |
|
Lophodiacrodium |
Lophodiacrodium parvimammum
|
USSR(Baltic) |
Late Ordovician |
|
Lophodiacrodium |
Lophodiacrodium parvispinum
|
USSR(Baltic) |
Late Ordovician |
|
Lophodiacrodium |
Lophodiacrodium sinutum
|
USSR(Baltic) |
Late Ordovician |
|
Lophodiacrodium |
Lophodiacrodium subspinellosum
|
USSR(Baltic) |
Late Ordovician |
|
Lophodiacrodium |
Lophodiacrodium torulosum
|
USSR(Baltic) |
Late Ordovician |
|
Lophodiacrodium |
Lophodiacrodium tuberculatum
|
USSR(Baltic) |
Late Ordovician |
|
Baltisphaeridium |
Baltisphaeridium antiquum
|
USSR(Baltic) |
Late Cambrian |
|
Dasydiacrodium |
Dasydiacrodium argutum
|
USSR(Baltic) |
Late Cambrian |
|
Dasydiacrodium |
Dasydiacrodium imperfectum
|
USSR(Baltic) |
Late Cambrian |
|
Baltisphaeridium |
Baltisphaeridium mutabile
|
USSR(Baltic) |
Middle Cambrian |
|