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†Pycnaspis Orvig 1958
urn:lsid:organismnames.com:name:2735816
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vdvicixili
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†Pycnaspis Orvig 1958
Orvig 1958. Pycnaspis splendens, new genus, new species, a new ostracoderm from the Upper Ordovician of North America. Proceedings of the United States National Museum, 108(no. 3391) 1958: pp. 23