Coryphidium |
Coryphidium miladum
|
Nd |
Late Arenigian |
|
Coryphidium |
Coryphidium minutum
|
Nd |
Late Arenigian |
|
Coryphidium |
Coryphidium ramiferum
|
Nd |
Early Arenigian |
|
Coryphidium |
Coryphidium sichuanense
|
Nd |
Early Cambrian |
|
Coryphidium |
Coryphidium tadlum
|
Nd |
Late Arenigian |
|
Costataplicata |
Costataplicata
|
Nd |
Nd |
|
Costatilobus |
Costatilobus
|
Nd |
Nd |
|
Costatilobus |
Costatilobus aremoricanus
|
Nd |
Early Gedinnian |
|
Costatilobus |
Costatilobus traumaticus
|
Nd |
Ludlovian |
|
Costatilobus |
Costatilobus undulatus
|
Nd |
Emsian |
|
Costatosphaerina |
Costatosphaerina
|
Nd |
Nd |
|
Costatosphaerina |
Costatosphaerina angustata
|
USSR(Kirghiz SSR) |
Early Vendian |
|
Costatosphaerina |
Costatosphaerina corrosiva
|
Nd |
Nd |
|
Costatosphaerina |
Costatosphaerina holtedahlii
|
Nd |
Eocambrian |
|
Costatosphaerina |
Costatosphaerina minima
|
Nd |
Nd |
|
Costatosphaerina |
Costatosphaerina psilata
|
Nd |
Nd |
|
Costatosphaerina |
Costatosphaerina ramosa
|
Nd |
Middle Riphean |
Late Riphean |