Classification of the genus Syncyclonema

G. †Syncyclonema Meek 1864
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Syncyclonema cretacea Nyst 1843
Syncyclonema gamsensis Dhondt 1971
Syncyclonema gibsonia Skwarko 1967
Syncyclonema greppini Pictet and Renevier 1858
Syncyclonema haeggi Dhondt 1971
Syncyclonema hagenowi Dhondt 1971
Syncyclonema haggi Dhondt 1971
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Invalid names: Pecten (Entolium) pusillulus Griepenkerl 1889 [synonym], Pecten laevis Nilsson 1827 [replaced]
Syncyclonema kingi Stephenson 1941
Syncyclonema latum Anderson 1958
Syncyclonema nilsoni Goldfuss 1835
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Invalid names: Pecten orbicularis Sowerby 1817 [synonym], Pecten spathulatus Roemer 1841 [synonym]