Homotryblium |
Homotryblium
|
Worldwide |
Middle Paleocene |
Oligocene |
Homotryblium |
Homotryblium tenuispinosum
|
Nd |
Nd |
|
Homotryblium |
Homotryblium vallum
|
Nd |
Nd |
|
Horologinella |
Horologinella
|
Worldwide |
Aptian |
Albian |
Horologinella |
Horologinella lineata
|
Nd |
Nd |
|
Hystrichodinium |
Hystrichodinium
|
Worldwide |
Late Jurassic |
Maastrichtian |
Hystrichodinium |
Hystrichodinium oligacanthum
|
Nd |
Nd |
|
Hystrichodinium |
Hystrichodinium pulchrum
|
Nd |
Nd |
|
Hystrichogonyaulax |
Hystrichogonyaulax
|
Worldwide |
Bathonian |
Neocomian |
Hystrichogonyaulax |
Hystrichogonyaulax cladophora
|
Nd |
Nd |
|
Hystrichogonyaulax |
Hystrichogonyaulax cornigera
|
Nd |
Nd |
|
Hystrichokolpoma |
Hystrichokolpoma
|
Worldwide |
Late Paleocene |
Early Pleistocene |
Hystrichokolpoma |
Hystrichokolpoma cinctum
|
Nd |
Late Paleocene |
Early Pleistocene |
Hystrichosphaeridium |
Hystrichosphaeridium
|
Worldwide |
Kimmeridgian |
Eocene |
Hystrichosphaeridium |
Hystrichosphaeridium dowlingii
|
Nd |
Nd |
|
Hystrichosphaeridium |
Hystrichosphaeridium tubiferum
|
Nd |
Nd |
|
Hystrichosphaerina |
Hystrichosphaerina
|
Worldwide |
Middle Oxfordian |
Turonian |