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†Difficilicrinus Frest, Strimple & McGinnis 1979
urn:lsid:organismnames.com:name:104239
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†Difficilicrinus Frest, Strimple & McGinnis 1979
Frest, Strimple & McGinnis 1979. Two new crinoids from the Ordovician of Virginia and Oklahoma, with notes on pinnulation in the Disparida. Journal of Paleontology, 53(2) 1979: 399-415