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Pycnaspis splendens, new genus, new species, a new ostracoderm from the Upper Ordovician of North America
Record no:
34733
Author:
Orvig, Tor
Year:
1958
Series:
PROCEEDINGS OF THE UNITED STATES NATIONAL MUSEUM. 1958 v.108, no.3391 : 1-23 + plates [kept P509.73]
Subject:
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