Hexagonifera |
Hexagonifera chlamydata
|
Canada(Eastern Offshore) |
Campanian |
|
Histiocysta |
Histiocysta palla
|
Nd |
Late Albian |
Cenomanian |
Histiocysta |
Histiocysta palla
|
Canada(Eastern Offshore) |
Cenomanian |
|
Horologinella |
Horologinella
|
Nd |
Campanian |
Maastrichtian |
Horologinella |
Horologinella sp
|
Canada(Eastern Offshore) |
Maastrichtian |
|
Hystrichodinium |
Hystrichodinium
|
Nd |
Valanginian |
Early Maastrichtian |
Hystrichodinium |
Hystrichodinium compactum
|
Nd |
Valanginian |
|
Hystrichodinium |
Hystrichodinium furcatum
|
Nd |
Hauterivian |
|
Hystrichodinium |
Hystrichodinium patriciae
|
Nd |
Middle Hauterivian |
Late Hauterivian |
Hystrichodinium |
Hystrichodinium pulchrum
|
Nd |
Late Valanginian |
Early Maastrichtian |
Hystrichodinium |
Hystrichodinium pulchrum
|
Canada(Eastern Offshore) |
Santonian |
|
Hystrichodinium |
Hystrichodinium pulchrum
|
Canada(Eastern Offshore) |
Senonian |
|
Hystrichodinium |
Hystrichodinium ramoides
|
Nd |
Late Barremian |
|
Hystrichodinium |
Hystrichodinium voigtii
|
Nd |
Barremian |
Cenomanian |
Hystrichokolpoma |
Hystrichokolpoma ferox
|
Nd |
Hauterivian |
Santonian |
Hystrichokolpoma |
Hystrichokolpoma ferox
|
Canada(Eastern Offshore) |
Santonian |
|
Hystrichokolpoma |
Hystrichokolpoma sequanaportus
|
Nd |
Late Campanian |
Maastrichtian |