Lithodinia |
Lithodinia araneosa
|
England(Yorkshire) |
Middle Callovian |
|
Lithodinia |
Lithodinia sagena
|
England(Yorkshire) |
Middle Barremian |
Late Barremian |
Lithodinia |
Lithodinia superornata
|
Nd |
Nd |
|
Litosphaeridium |
Litosphaeridium conispinum
|
France |
Late Albian |
|
Litosphaeridium |
Litosphaeridium flosculus
|
Nd |
Nd |
|
Maduradinium |
Maduradinium spatiosum
|
Nd |
Nd |
|
Meiourogonyaulax |
Meiourogonyaulax
|
Nd |
Nd |
|
Meiourogonyaulax |
Meiourogonyaulax araneosa
|
Nd |
Nd |
|
Meiourogonyaulax |
Meiourogonyaulax sagena
|
England(Yorkshire) |
Middle Barremian |
Late Barremian |
Membranilarnacia |
Membranilarnacia amalthei
|
Germany |
Late Pliensbachian |
|
Membranilarnacia |
Membranilarnacia granulatum
|
Nd |
Nd |
|
Membranophoridium |
Membranophoridium regulatum
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Membranophoridium |
Membranophoridium variatum
|
China(Hopei) |
Early Oligocene |
Middle Oligocene |
Membranosphaera |
Membranosphaera norvickii
|
Australia(Queensland) |
Aptian |
Albian |
Micrhystridium |
Micrhystridium fucosum
|
France(Cher) |
Late Cretaceous |
|
Micrhystridium |
Micrhystridium paulinae
|
France(Poitou) |
Bajocian |
|
Microdinium |
Microdinium ellipsoideum
|
Nd |
Nd |
|