Classification of the genus Failleana
G. †Failleana Chatterton and Ludvigson 1976
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†Failleana calva Chatterton and Ludvigsen 1976
†Failleana limbata Raymond 1910
†Failleana magnifica Chatterton and Ludvigsen 2004
†Failleana wangi Chatterton and Ludvigsen 2004