Mancodinium |
Mancodinium semitabulatum
|
England |
Toarcian |
|
Maturodinium |
Maturodinium
|
Nd |
Early Jurassic |
Middle Jurassic |
Maturodinium |
Maturodinium inornatum
|
Nd |
Nd |
|
Membranophoridium |
Membranophoridium aspinatum
|
Atlantic(Bahamas) |
Early Pleistocene |
|
Micrhystridium |
Micrhystridium
|
Nd |
Nd |
|
Microdinium |
Microdinium
|
Nd |
Early Jurassic |
Paleogene |
Microdinium |
Microdinium ornatum
|
Nd |
Nd |
|
Mikrocysta |
Mikrocysta
|
Nd |
Early Jurassic |
Paleogene |
Moesiodinium |
Moesiodinium
|
Nd |
Early Jurassic |
Middle Cretaceous |
Morkallacysta |
Morkallacysta
|
Nd |
Nd |
|
Muderongia |
Muderongia
|
Nd |
Nd |
|
Muderongia |
Muderongia sp.A Dave.,1979
sp. nov. |
England |
Kimmeridgian |
|
Muderongia |
Muderongia tetracantha
|
Canada(NWT,Mackenzie) |
Valanginian |
|
Multispinula |
Multispinula
|
Nd |
Nd |
|
Nannoceratopsis |
Nannoceratopsis
|
Nd |
Nd |
|
Nannoceratopsis |
Nannoceratopsis gracilis
|
England |
Aalenian |
|
Nelchinopsis |
Nelchinopsis kostromiensis
|
Nd |
Nd |
|