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†Spiraclavus Sumrall 1992
urn:lsid:organismnames.com:name:913274
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93
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†Spiraclavus Sumrall 1992
Sumrall 1992. Spiraclavus nacoensis, a new species of clavate agelacrinitid edrioasteroid from central Arizona. Journal of Paleontology, 66(1) 1992: 90-98