Veryhachium |
Veryhachium deunffii
|
Canada(British Columbia) |
Scythian |
Anisian |
Baltisphaeridium |
Baltisphaeridium deunffii
|
Canada(British Columbia) |
Scythian |
Anisian |
Hystrichosphaeridium |
Hystrichosphaeridium palmatum
|
France(Normandie) |
Senonian |
|
Spiniferites |
Spiniferites
|
Nd |
Nd |
|
Hystrichosphaera |
Hystrichosphaera
|
Nd |
Nd |
|
Hystrichosphaera |
Hystrichosphaera furcata
|
Nd |
Nd |
|
Hystrichosphaera |
Hystrichosphaera ramosa
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium densicomatum
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium recurvatum
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium palmatum
|
Nd |
Nd |
|
Spiniferites |
Spiniferites reginaldii
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium reginaldii
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium spini-curvatum
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium texanum
|
Nd |
Nd |
|
Geodia |
Geodia
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium clavigerum
|
Nd |
Nd |
|