Membranosphaera |
Membranosphaera maastrichtica
|
Nd |
Late Cretaceous |
|
Membranosphaera |
Membranosphaera maastrichtica
|
Nd |
Late Cretaceous |
|
Membranosphaera |
Membranosphaera norvickii
|
Nd |
Albian |
|
Membranosphaera |
Membranosphaera romaensis
|
Nd |
Aptian |
|
Membranosphaera |
Membranosphaera tuberculata
|
Nd |
Late Jurassic |
|
Menneria |
Menneria
|
Nd |
Nd |
|
Menneria |
Menneria adischevii
|
USSR(Kirghiz SSR) |
Early Cambrian |
|
Menneria |
Menneria foraminis
|
USSR(Kirghiz SSR) |
Early Vendian |
|
Menneria |
Menneria granosa
|
USSR(Kirghiz SSR) |
Early Vendian |
|
Menneria |
Menneria levis
|
Nd |
Middle Riphean |
Late Riphean |
Menneria |
Menneria primaeva
|
Nd |
Nd |
|
Menneria |
Menneria roblota
|
USSR(Kirghiz SSR) |
Middle Riphean |
Vendian |
Metaleiofusa |
Metaleiofusa
|
Nd |
Nd |
|
Metaleiofusa |
Metaleiofusa arcuata
|
Nd |
Early Jurassic |
|
Metaleiofusa |
Metaleiofusa bispinosa
|
Nd |
Early Triassic |
|
Metaleiofusa |
Metaleiofusa compressa
|
Nd |
Early Triassic |
|
Metaleiofusa |
Metaleiofusa diagonalis
|
Nd |
Early Jurassic |
|