Traits name details
original description
(of Pecten macdonaldi Olsson, 1922 †) Olsson, A. A. (1922). The Miocene of northern Costa Rica with notes on its general stratigraphic relations. <em>Bulletins of American Paleontology.</em> 9(39): 173-481 [1-309], pls 1-32 [4-35]., available online at https://www.biodiversitylibrary.org/page/46040597 page(s): 370, pl. 16, figs 1, 2 [details]
basis of record
Mansfield, W. C. (1932). Miocene pelecypods of the Choctawhatchee Formation of Florida. <em>Florida Geological Survey Bulletin.</em> 8: 7-164, pls. 1-34., available online at https://ufdcimages.uflib.ufl.edu/UF/00/00/04/42/00001/UF00000442.pdf page(s): 57-58, pl. 14, figs. 5-6 [details]
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