Genus

Sigmobolbina Henningsmoen, 1953

Images
GIT 138-12
Sigmobolbina variolaris | Sigmobolbina variolaris (Bonnema, 1909)
Kukruse Stage
GIT 138-15
Sigmobolbina quanta | Sigmobolbina quanta Sarv, 1959
Idavere Substage
GIT 138-16
Sigmobolbina quanta | Sigmobolbina quanta Sarv, 1959
Keila Stage
GIT 138-17
Sigmobolbina quanta | Sigmobolbina quanta Sarv, 1959
Keila Stage
TUG 1820-6748 Pirgu Stage | Jelgava formation
GIT 270-119
Sigmobolbina camarota | Sigmobolbina camarota Jaanusson, 1966
231.7 Rakvere Stage
GIT 270-120
Sigmobolbina camarota | Sigmobolbina camarota Jaanusson, 1966
231.7 Rakvere Stage
GIT 270-121
Sigmobolbina kolkaensis | Sigmobolbina kolkaensis Gailite, 1975
116.3 Vormsi Stage
GIT 657-11
Sigmobolbina variolaris | Sigmobolbina variolaris (Bonnema, 1909)
26.65 - 26.7Idavere Substage
GIT 657-14
Sigmobolbina variolaris | Sigmobolbina variolaris (Bonnema, 1909)
26.7 - 26.74Idavere Substage