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†Trachelocrinus Ulrich 1929
urn:lsid:organismnames.com:name:1287277
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CmiMv
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†Trachelocrinus Ulrich 1929
Ulrich 1929. Trachelocrinus, a new genus of Upper Cambrian, crinoids. Journal of the Washington Academy of Sciences, 19 1929: pp. 63-66