Beets, C., 1953. Reconsideration of the So-Called Oligocene Fauna in the Asphaltic Deposits of Buton (Malay Archipelago) 1. Mio-Pliocene Mollusca. Leidsche Geologische Mededelingen, 17: 237 -258 .
New Species-Group Names:
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asphaltodes Beets, 1953. p. 251. pl. 1. f. 1. 2.
