Chytroeisphaeridia |
Chytroeisphaeridia chytroeides
|
Argentina(Buenos Aires) |
Eocene |
Miocene |
Achomosphaera |
Achomosphaera ramulifera
|
Argentina(Buenos Aires) |
Eocene |
Miocene |
Nematosphaeropsis |
Nematosphaeropsis densiradiata
|
Argentina(Buenos Aires) |
Eocene |
Miocene |
Spiniferites |
Spiniferites ramosus
|
Argentina(Buenos Aires) |
Eocene |
Miocene |
Spiniferites |
Spiniferites membranaceus
|
Argentina(Buenos Aires) |
Eocene |
Miocene |
Cordosphaeridium |
Cordosphaeridium minimum
|
Argentina(Buenos Aires) |
Eocene |
Miocene |
Hystrichokolpoma |
Hystrichokolpoma rigaudiae
|
Argentina(Buenos Aires) |
Eocene |
Miocene |
Hystrichokolpoma |
Hystrichokolpoma poculum
|
Argentina(Buenos Aires) |
Eocene |
Miocene |
Oligosphaeridium |
Oligosphaeridium complex
|
Argentina(Buenos Aires) |
Eocene |
Miocene |
Cleistosphaeridium |
Cleistosphaeridium patagonicum
|
Argentina(Buenos Aires) |
Eocene |
Miocene |
Leiosphaeridia |
Leiosphaeridia staplini
|
Argentina(Buenos Aires) |
Eocene |
Miocene |