Baltisphaeridium |
Baltisphaeridium clavigerum
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium cretaceum
|
Texas |
Early Cretaceous |
|
Baltisphaeridium |
Baltisphaeridium densicomatum
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium deunffii
|
Canada(British Columbia) |
Scythian |
Anisian |
Baltisphaeridium |
Baltisphaeridium deunffii
|
Portugal |
Caradocian |
|
Baltisphaeridium |
Baltisphaeridium galea
|
W.Germany |
Middle Oligocene |
|
Baltisphaeridium |
Baltisphaeridium korykum
|
W.Germany |
Middle Miocene |
|
Baltisphaeridium |
Baltisphaeridium leve
|
W.Germany |
Late Oligocene |
Middle Miocene |
Baltisphaeridium |
Baltisphaeridium lychneum
|
W.Germany |
Middle Miocene |
|
Baltisphaeridium |
Baltisphaeridium mespilanum
|
W.Germany |
Middle Oligocene |
Middle Miocene |
Baltisphaeridium |
Baltisphaeridium palmatum
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium reginaldii
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium spini-curvatum
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium texanum
|
Nd |
Nd |
|
Baltisphaeridium |
Baltisphaeridium twistringiense
|
W.Germany |
Late Oligocene |
Middle Miocene |
Galea |
Galea densicomata
|
Texas |
Early Cretaceous |
|
Galea |
Galea galea
|
W.Germany |
Middle Oligocene |
|