Psiloschizosporis |
Psiloschizosporis parvus
|
Nd |
Cenomanian |
|
Psiloschizosporis |
Psiloschizosporis psilata
|
Nd |
Middle Eocene |
Late Eocene |
Psiloschizosporis |
Psiloschizosporis punctata
|
Nd |
Middle Eocene |
Late Eocene |
Psiloschizosporis |
Psiloschizosporis scissus
|
Nd |
Permian |
|
Psilosphaera |
Psilosphaera
|
Nd |
Nd |
|
Psilosphaera |
Psilosphaera plicata
|
Nd |
Tertiary |
|
Psophosphaera |
Psophosphaera
|
Nd |
Nd |
|
Psophosphaera |
Psophosphaera bilobata
|
Nd |
Early Jurassic |
|
Psophosphaera |
Psophosphaera clausa
|
Nd |
Early Cretaceous |
|
Pterocystidiopsis |
Pterocystidiopsis
|
Nd |
Nd |
|
Pterocystidiopsis |
Pterocystidiopsis albertii
|
Nd |
Kimmeridgian |
|
Pterocystidiopsis |
Pterocystidiopsis angulosa
|
Nd |
Late Jurassic |
|
Pterocystidiopsis |
Pterocystidiopsis bottnica
|
Nd |
Middle Ordovician |
|
Pterocystidiopsis |
Pterocystidiopsis durandiae
|
Nd |
Caradocian |
|
Pterocystidiopsis |
Pterocystidiopsis elegans
|
Nd |
Middle Ordovician |
|
Pterocystidiopsis |
Pterocystidiopsis halosa
|
Nd |
Bajocian |
|
Pterocystidiopsis |
Pterocystidiopsis magngaiensis
|
Nd |
Early Miocene |
Middle Miocene |