Classification of the genus Sphenolithus
G. Sphenolithus Deflandre 1952
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†Sphenolithus abies Deflandre 1954
†Sphenolithus compactus Backman 1980
†Sphenolithus heteromorphus Deflandre 1953
†Sphenolithus moriformis Bronnimann and Stradner 1960
†Sphenolithus radians Deflandre 1952