Baltisphaeridium |
Baltisphaeridium truncatum
|
Canada(Alberta) |
Late Devonian |
|
Baltisphaeridium |
Baltisphaeridium tuberatum
|
Nd |
Paleozoic |
|
Baltisphaeridium |
Baltisphaeridium tuberosum
|
Nd |
Paleozoic |
|
Baltisphaeridium |
Baltisphaeridium varispinosum
|
Nd |
Paleozoic |
|
Baltisphaeridium |
Baltisphaeridium venustum
|
Nd |
Paleozoic |
|
Baltisphaeridium |
Baltisphaeridium vestitum
|
Nd |
Paleozoic |
|
Baltisphaeridium |
Baltisphaeridium vestitum
|
Nd |
Paleozoic |
|
Baltisphaeridium |
Baltisphaeridium vigintispinum
|
Canada(Alberta) |
Late Devonian |
|
Baltisphaeridium |
Baltisphaeridium whiteii
|
Nd |
Paleozoic |
|
Baltisphaeridium |
Baltisphaeridium xanthiopyxides
|
Nd |
Paleozoic |
|
Baltisphaeridium |
Baltisphaeridium zonale
|
Nd |
Paleozoic |
|
Hystrichosphaera |
Hystrichosphaera asteroidea
|
USSR(Georgian SSR) |
Late Cretaceous |
|
Hystrichosphaera |
Hystrichosphaera intermedia
|
Denmark |
Late Senonian |
Danian |
Hystrichosphaera |
Hystrichosphaera longispinosa
|
Denmark |
Late Senonian |
Danian |
Hystrichosphaera |
Hystrichosphaera longispinosa
|
Denmark |
Late Senonian |
Danian |
Hystrichosphaera |
Hystrichosphaera mensula
|
Baltic |
Late Senonian |
Danian |
Hystrichosphaera |
Hystrichosphaera pilosa
|
Nd |
Nd |
|