Leiosphaeridia |
Leiosphaeridia sp.A Guer.,1990
sp. nov. |
Argentina(Buenos Aires) |
Eocene |
Miocene |
Leiosphaeridia |
Leiosphaeridia staplini
|
Argentina(Buenos Aires) |
Eocene |
Miocene |
Micrhystridium |
Micrhystridium sp
|
Argentina(Buenos Aires) |
Eocene |
Miocene |
Nematosphaeropsis |
Nematosphaeropsis densiradiata
|
Argentina(Buenos Aires) |
Oligocene |
Miocene |
Oligosphaeridium |
Oligosphaeridium complex
|
Argentina(Buenos Aires) |
Eocene |
Early Miocene |
Pentadinium |
Pentadinium taeniagerum
|
Argentina(Buenos Aires) |
Eocene |
Miocene |
Pterospermella |
Pterospermella sp
|
Argentina(Buenos Aires) |
Eocene |
Miocene |
Pterosphaeridia |
Pterosphaeridia sp
|
Argentina(Buenos Aires) |
Eocene |
Miocene |
Spiniferites |
Spiniferites membranaceus
|
Argentina(Buenos Aires) |
Eocene |
Late Miocene |
Spiniferites |
Spiniferites ramosus
|
Argentina(Buenos Aires) |
Eocene |
Miocene |
Spiniferites |
Spiniferites sp. Guer.,1990
sp. nov. |
Argentina(Buenos Aires) |
Eocene |
Late Miocene |
Surculosphaeridium |
Surculosphaeridium sp. Guer.,1990
sp. nov. |
Argentina(Buenos Aires) |
Eocene |
|
Tasmanites |
Tasmanites sp
|
Argentina(Buenos Aires) |
Eocene |
Miocene |