Sigmomorphina beaglensis
Loeblich and Tappan, 1994
type specimen   holotype
Quaternary
Banda, Timor and Arafura Sea

Sigmomorphina guttula
Fuchs, 1970
type specimen   holotype
Jurassic
Vienna Basin

Sigmomorphina megapolitana
(Clodius, 1922)
identified by scientist   
Paleogene
North European Plain

Sigmomorphina megapolitana
(Clodius, 1922)
identified by scientist   
Paleogene
North European Plain

Sigmomorphina regularis
Roemer, 1838
identified by M. Hesemann   
Paleogene
North European Plain

Sigmomorphina undulosa
(Terquem, 1878)
identified by M. Hesemann   
Quaternary
Greater North Sea

Sigmomorphina undulosa
(Terquem, 1878)
identified by M. Hesemann   
Quaternary
Greater North Sea