Jansonia |
Jansonia jurassica
|
Nd |
Nd |
|
Kaiwaradinium |
Kaiwaradinium
|
Worldwide |
Tithonian |
|
Kaiwaradinium |
Kaiwaradinium buccinatum
|
Nd |
Nd |
|
Kallosphaeridium |
Kallosphaeridium
|
Worldwide |
Cenomanian |
Middle Oligocene |
Kallosphaeridium |
Kallosphaeridium brevibarbatum
|
Nd |
Nd |
|
Kalyptea |
Kalyptea
|
Worldwide |
Oxfordian |
Albian |
Kalyptea |
Kalyptea diceras
|
Nd |
Nd |
|
Kalyptea |
Kalyptea stegasta
|
Nd |
Nd |
|
Kalyptea |
Kalyptea trinetra
|
Nd |
Nd |
|
Kenleyia |
Kenleyia
|
Worldwide |
Paleocene |
Early Eocene |
Kenleyia |
Kenleyia pachycerata
|
Nd |
Nd |
|
Kiokansium |
Kiokansium
|
Worldwide |
Albian |
|
Kiokansium |
Kiokansium unituberculatum
|
Nd |
Nd |
|
Kisselevia |
Kisselevia
|
Worldwide |
Eocene |
Early Oligocene |
Kisselevia |
Kisselevia ornata
|
Nd |
Nd |
|
Kleithriasphaeridium |
Kleithriasphaeridium
|
Worldwide |
Barremian |
Paleocene |
Kleithriasphaeridium |
Kleithriasphaeridium corrugatum
|
Nd |
Nd |
|