Hystrichosphaeridium |
Hystrichosphaeridium stellatum
|
Arizona |
Late Cenomanian |
|
Hystrichosphaeridium |
Hystrichosphaeridium tubiferum
|
Arizona |
Late Cenomanian |
|
Hystrichosphaeridium |
Hystrichosphaeridium sp
|
Arizona |
Late Cenomanian |
|
Kallosphaeridium |
Kallosphaeridium sp
|
Arizona |
Late Cenomanian |
Turonian |
Kiokansium |
Kiokansium hesperus
|
Arizona |
Cretaceous |
Early Turonian |
Kiokansium |
Kiokansium polypes
|
Arizona |
Late Cenomanian |
Early Turonian |
Kiokansium |
Kiokansium williamsii
|
Arizona |
Late Cenomanian |
|
Kiokansium |
Kiokansium sp
|
Arizona |
Late Cenomanian |
|
Litosphaeridium |
Litosphaeridium siphoniphorum
|
Arizona |
Late Cenomanian |
|
Luxadinium |
Luxadinium sp
|
Arizona |
Late Cenomanian |
|
Micrhystridium |
Micrhystridium fragile
|
Arizona |
Late Cenomanian |
|
Micrhystridium |
Micrhystridium inconspicuum
|
Arizona |
Late Cenomanian |
|
Micrhystridium |
Micrhystridium stellatum
|
Arizona |
Late Cenomanian |
|
Muderongia |
Muderongia perforata
|
Arizona |
Early Turonian |
|
Odontochitina |
Odontochitina costata
|
Arizona |
Late Cenomanian |
|
Odontochitina |
Odontochitina operculata
|
Arizona |
Late Cenomanian |
Early Turonian |
Odontochitina |
Odontochitina sp
|
Arizona |
Late Cenomanian |
|