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| Nyborg, Torrey, Vega, Francisco J. and Filkorn, Harry F. First described species of Costacopluma (Crustacea: Brachyura: Retroplumidae) from the Pacific slope, Paleocene of California, USA. Bol. Soc. Geol. Mex, 2009, vol.61, no.2, p.203-209. ISSN 1405-3322
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