Palaeostomocystis |
Palaeostomocystis fragilis
|
Texas |
Cenomanian |
Coniacian |
Pareodinia |
Pareodinia ceratophora
|
Texas |
Cenomanian |
Coniacian |
Polysphaeridium |
Polysphaeridium fabium
|
Nd |
Nd |
|
Polysphaeridium |
Polysphaeridium follium
|
Nd |
Nd |
|
Polysphaeridium |
Polysphaeridium marsupium
|
Nd |
Nd |
|
Polysphaeridium |
Polysphaeridium perovatum
|
Nd |
Nd |
|
Polysphaeridium |
Polysphaeridium tribrachiosum
|
Nd |
Nd |
|
Prolixosphaeridium |
Prolixosphaeridium conulum
|
Texas |
Cenomanian |
Coniacian |
Pterodinium |
Pterodinium cornutum
|
Texas |
Early Cenomanian |
|
Pterodinium |
Pterodinium perforatum
|
Texas |
Early Cenomanian |
|
Pterospermella |
Pterospermella aristotelesi
|
Texas |
Cenomanian |
|
Retitriletes |
Retitriletes singhii
|
Texas |
Cenomanian |
Coniacian |
Rugubivesiculites |
Rugubivesiculites reductus
|
Texas |
Cenomanian |
Coniacian |
Silicisphaera |
Silicisphaera ferox
|
Texas |
Cenomanian |
Coniacian |
Spiniferites |
Spiniferites cingulatus
|
Texas |
Cenomanian |
Coniacian |
Spiniferites |
Spiniferites compactus
|
Texas |
Early Cenomanian |
|
Spiniferites |
Spiniferites ramosus
|
Texas |
Cenomanian |
Coniacian |