Classification of the genus Sostronocrinus
G. †Sostronocrinus Strimple and McGinnis 1969
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†Sostronocrinus minutus Lane et al. 1997
†Sostronocrinus mundus Whidborne 1898
†Sostronocrinus quadribrachiatus Waters et al. 2003
†Sostronocrinus superbus Strimple and McGinnis 1969