Pluriarvalium |
Pluriarvalium osmingtonense
|
Alaska |
Late Jurassic |
|
Polygonifera |
Polygonifera evittii
|
Nd |
Nd |
|
Polysphaeridium |
Polysphaeridium amalthei
|
Nd |
Nd |
|
Polysphaeridium |
Polysphaeridium asperum
|
Nd |
Nd |
|
Polysphaeridium |
Polysphaeridium belgicum
|
Nd |
Nd |
|
Polysphaeridium |
Polysphaeridium caminuspinum
|
Nd |
Nd |
|
Polysphaeridium |
Polysphaeridium conispinum
|
France |
Late Albian |
|
Polysphaeridium |
Polysphaeridium deflandrei
|
Nd |
Nd |
|
Polysphaeridium |
Polysphaeridium elongatum
|
Nd |
Nd |
|
Polysphaeridium |
Polysphaeridium fucosum
|
Nd |
Nd |
|
Polysphaeridium |
Polysphaeridium giganteum
|
Spain |
Paleocene |
Eocene |
Polysphaeridium |
Polysphaeridium granulosum
|
Nd |
Nd |
|
Polysphaeridium |
Polysphaeridium laminaspinosum
|
Nd |
Nd |
|
Polysphaeridium |
Polysphaeridium langii
|
Nd |
Nd |
|
Polysphaeridium |
Polysphaeridium majus
|
Nd |
Nd |
|
Polysphaeridium |
Polysphaeridium multispinosum
|
Nd |
Nd |
|
Polysphaeridium |
Polysphaeridium pastielsii
|
Nd |
Nd |
|