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Gonyaulacysta helicoidea ssp. tuberculata
General Images Stratigraphy Description Literature Notes
helicoidea ssp. tuberculata
Vozzhennikova, T.F. (1967)
Lentin, J.K. and Vozzhennikova, T.F. (1990)
junior synonym
Gonyaulacysta helicoidea var. tuberculata
Gonyaulacysta tuberculata
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