Dapsilidinium |
Dapsilidinium conispinum
|
California |
Late Albian |
Cenomanian |
Hystrichokolpoma |
Hystrichokolpoma fenestreconum
|
California |
Maastrichtian |
|
Hystrichosphaeridium |
Hystrichosphaeridium arundum
|
California |
Late Albian |
Cenomanian |
Litosphaeridium |
Litosphaeridium
|
Kansas |
Cenomanian |
Turonian |
Litosphaeridium |
Litosphaeridium arundum
|
California |
Late Albian |
Cenomanian |
Litosphaeridium |
Litosphaeridium bacar
sp. nov. |
California |
Late Albian |
Cenomanian |
Litosphaeridium |
Litosphaeridium conispinum
|
California |
Late Albian |
Cenomanian |
Litosphaeridium |
Litosphaeridium crassipes
|
Nd |
Nd |
|
Litosphaeridium |
Litosphaeridium fenestreconum
|
California |
Maastrichtian |
|
Litosphaeridium |
Litosphaeridium luteticum
|
Nd |
Nd |
|
Litosphaeridium |
Litosphaeridium mamellatum
|
Nd |
Nd |
|
Litosphaeridium |
Litosphaeridium oblongum
|
Nd |
Nd |
|
Litosphaeridium |
Litosphaeridium siphoniphorum
|
Kansas |
Cenomanian |
Turonian |
Litosphaeridium |
Litosphaeridium siphoniphorum
sp. nov. |
California |
Albian |
Cenomanian |
Litosphaeridium |
Litosphaeridium sp
|
California |
Maastrichtian |
|
Polysphaeridium |
Polysphaeridium conispinum
|
California |
Late Albian |
Cenomanian |
Polysphaeridium |
Polysphaeridium fucosum
|
California |
Late Albian |
Cenomanian |