Classification of the order Trachelocrinida

Or. †Trachelocrinida Sumrall 1997
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Fm. †Heckerocrinidae Doweld 2012
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G. †Heckerocrinus Doweld 2012
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†Heckerocrinus cucumis Doweld 2012
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Invalid names: Bockia cucumis Hecker 1940 [replaced]
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Invalid names: Bockia elpasoensis Sprinkle and Wahlman 1994 [replaced]
†Heckerocrinus gravus Doweld 2012
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Invalid names: Bockia grava Bockelie 1981 [replaced]
†Heckerocrinus heintzi Doweld 2012
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Invalid names: Bockia heintzi Bockelie 1981 [replaced]
†Heckerocrinus laevis Doweld 2012
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Invalid names: Bockia laevis Hecker 1940 [replaced]
†Heckerocrinus mirabilis Doweld 2012
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Invalid names: Bockia mirabilis Bockelie 1981 [replaced]
†Heckerocrinus neglectus Doweld 2012
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Invalid names: Bockia neglecta Hecker 1940 [replaced]
†Heckerocrinus sculptus Doweld 2012
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Invalid names: Bockia sculpta Hecker 1940 [replaced]
Invalid names: Bockia Hecker 1938 [replaced]
Invalid names: Bockiidae Ubaghs 1972 [replaced]
Fm. †Trachelocrinidae Sprinkle 1973
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G. †Tatonkacystis Sumrall et al. 1997
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†Tatonkacystis codyensis Sumrall et al. 1997
G. †Trachelocrinus Ulrich 1929
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†Trachelocrinus resseri Ulrich 1929