Hemiplacophora |
Hemiplacophora
|
Worldwide |
Late Eocene |
|
Hemiplacophora |
Hemiplacophora semilunifera
|
Australia |
Late Eocene |
|
Heslertonia |
Heslertonia
|
Worldwide |
Callovian |
Late Cretaceous |
Heslertonia |
Heslertonia heslertonensis
|
England |
Early Cretaceous |
|
Heslertonia |
Heslertonia heslertonensis
|
Australia |
Late Cretaceous |
|
Hestertoniaceae |
Hestertoniaceae
|
Nd |
Nd |
|
Heterosphaeridium |
Heterosphaeridium
|
Worldwide |
Senonian |
Oligocene |
Heterosphaeridium |
Heterosphaeridium conjunctum
|
Australia |
Late Cretaceous |
|
Hexasphaera |
Hexasphaera asymmetrica
|
France |
Senonian |
|
Hexasphaera |
Hexasphaera asymmetrica
|
England |
Hauterivian |
Middle Barremian |
Hexasphaera |
Hexasphaera asymmetrica
|
England |
Cenomanian |
|
Homotryblium |
Homotryblium
|
Worldwide |
Paleocene |
Oligocene |
Homotryblium |
Homotryblium floripes
|
W.Germany |
Late Oligocene |
|
Homotryblium |
Homotryblium tenuispinosum
|
England |
Eocene |
|
Hystrichodinium |
Hystrichodinium
|
Worldwide |
Late Jurassic |
Late Cretaceous |
Hystrichodinium |
Hystrichodinium pulchrum
|
Poland |
Early Cretaceous |
|
Hystrichodinium |
Hystrichodinium pulchrum
|
W.Germany |
Early Cretaceous |
|