Genus

Sigmobolbina Henningsmoen, 1953


GIT 138-12	Sigmobolbina variolaris \| Sigmobolbina variolaris (Bonnema, 1909)	Humala		Kukruse Stage
GIT 138-15	Sigmobolbina quanta \| Sigmobolbina quanta Sarv, 1959	Jõhvi-Paemurru quarry		Idavere Substage
GIT 138-16	Sigmobolbina quanta \| Sigmobolbina quanta Sarv, 1959	Oandu		Keila Stage
GIT 138-17	Sigmobolbina quanta \| Sigmobolbina quanta Sarv, 1959	Oandu		Keila Stage
TUG 1820-6	Sigmobolbina camarota	Jurmala R-1 borehole	748	Pirgu Stage \| Jelgava formation
GIT 270-119	Sigmobolbina camarota \| Sigmobolbina camarota Jaanusson, 1966	Laeva 18 borehole	231.7	Rakvere Stage
GIT 270-120	Sigmobolbina camarota \| Sigmobolbina camarota Jaanusson, 1966	Laeva 18 borehole	231.7	Rakvere Stage
GIT 270-121	Sigmobolbina kolkaensis \| Sigmobolbina kolkaensis Gailite, 1975	Ruskavere 451 borehole	116.3	Vormsi Stage
GIT 657-11	Sigmobolbina variolaris \| Sigmobolbina variolaris (Bonnema, 1909)	Lipu 6301 borehole	26.65 - 26.7	Idavere Substage
GIT 657-14	Sigmobolbina variolaris \| Sigmobolbina variolaris (Bonnema, 1909)	Lipu 6301 borehole	26.7 - 26.74	Idavere Substage