Regina |
Regina excelsa
|
Nd |
Nd |
|
Reticulatasporites |
Reticulatasporites cristatus
sp. nov. |
South Dakota |
Maastrichtian |
|
Rhoipites |
Rhoipites
|
Nd |
Nd |
|
Rhoipites |
Rhoipites crassus
sp. nov. |
South Dakota |
Paleocene |
|
Rhoipites |
Rhoipites globosus
sp. nov. |
South Dakota |
Late Cretaceous |
|
Rhoipites |
Rhoipites pisinnus
sp. nov. |
South Dakota |
Late Cretaceous |
Paleocene |
Schizaea |
Schizaea
|
Nd |
Nd |
|
Schizaea |
Schizaea plectilis
sp. nov. |
South Dakota |
Late Cretaceous |
|
Schizaea |
Schizaea triangula
sp. nov. |
South Dakota |
Paleocene |
|
Schizosporis |
Schizosporis complexus
sp. nov. |
South Dakota |
Late Cretaceous |
|
Schizosporis |
Schizosporis laevigatus
sp. nov. |
South Dakota |
Paleocene |
|
Schizosporis |
Schizosporis microfoveatus
sp. nov. |
South Dakota |
Late Cretaceous |
|
Schizosporis |
Schizosporis scabratus
sp. nov. |
South Dakota |
Late Cretaceous |
|
Sequoiapollenites |
Sequoiapollenites
|
Nd |
Nd |
|
Sequoiapollenites |
Sequoiapollenites paleocenicus
sp. nov. |
South Dakota |
Paleocene |
|
Sphagnites |
Sphagnites australis
|
Nd |
Nd |
|
Sphagnum |
Sphagnum antiquasporites
|
South Dakota |
Late Cretaceous |
Paleocene |