Reticulatosphaera |
Reticulatosphaera stellata
|
Pacific Ocean |
Early Miocene |
Early Pleistocene |
Spiniferites |
Spiniferites hexatypicus
|
Pacific Ocean |
Middle Miocene |
Early Pliocene |
Spiniferites |
Spiniferites ovatus
|
Pacific Ocean |
Middle Miocene |
Early Pliocene |
Systematophora |
Systematophora ancyrea
|
Pacific Ocean |
Late Miocene |
Pleistocene |
Tanyosphaeridium |
Tanyosphaeridium fusiforme
|
Pacific Ocean |
Miocene |
|
Tanyosphaeridium |
Tanyosphaeridium fusiforme
|
Japan(Nara Pref.) |
Miocene |
|
Tectatodinium |
Tectatodinium pellitum
|
Pacific Ocean |
Late Miocene |
Pleistocene |