Classification of Missarzhevsky 1980
G. †Nomgoliella Missarzhevsky 1980
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†Nomgoliella sinistrivolubilis Missarzhevsky 1980
Fm. †Sinuitidae Dall 1913
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Fm. †Circothecidae Rozanov et al. 1969
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Fm. †Sulcavitidae Syssoiev 1958
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