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†Pyxiprimitia Swartz 1936
urn:lsid:organismnames.com:name:3162662
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570
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†Pyxiprimitia Swartz 1936
Swartz 1936. Revision of the Primitiidae and Beyrichiidae with new Ostracoda from the Lower Devonian of Pennsylvania. Journal of Paleontology Menasha, 10 1936: pp. 541-586