Jusella |
Jusella denticulata
|
Nd |
Early Oligocene |
|
Jusella |
Jusella rariporosa
|
Nd |
Nd |
|
Kallosphaeridium |
Kallosphaeridium brevibarbatum
|
Nd |
Early Eocene |
|
Kalyptea |
Kalyptea aceras
|
Canada(NWT,Franklin) |
Cenomanian |
|
Kenleyia |
Kenleyia fimbriata
|
Nd |
Nd |
|
Kenleyia |
Kenleyia leptocerata
|
Nd |
Paleocene |
|
Kenleyia |
Kenleyia lophophora
|
Nd |
Paleocene |
|
Kenleyia |
Kenleyia nuda
|
Nd |
Early Eocene |
|
Kenleyia |
Kenleyia pachycerata
|
Nd |
Paleocene |
|
Kisselevia |
Kisselevia
|
Nd |
Nd |
|
Kisselevia |
Kisselevia major
|
Nd |
Nd |
|
Kisselevia |
Kisselevia ornata
|
Nd |
Eocene |
|
Kisselevia |
Kisselevia ornata
sp. nov. |
Nd |
Eocene |
|
Kisselevia |
Kisselevia ornata
sp. nov. |
Nd |
Eocene |
Oligocene |
Kofoidopsis |
Kofoidopsis coronata
|
Nd |
Early Permian |
|
Komewuia |
Komewuia glabra
|
Nd |
Tithonian |
|
Korojonia |
Korojonia dubiosa
|
Nd |
Cenomanian |
Early Maastrichtian |