Stephenson I.W. (1936). New Upper Cretaceous Ostreidae from the Gulf region. <em>U.S. Geological Survey Professional Paper.</em> 186A: 1-12, pl. 1-3., available online athttps://books.google.es/books?id=P0IRAAAAIAAJ&pg=PR3 page(s): 4-5, pl. 2 fig. 5, pl. 3 figs 1-5 [details]
original descriptionStephenson I.W. (1936). New Upper Cretaceous Ostreidae from the Gulf region. <em>U.S. Geological Survey Professional Paper.</em> 186A: 1-12, pl. 1-3., available online athttps://books.google.es/books?id=P0IRAAAAIAAJ&pg=PR3 page(s): 4-5, pl. 2 fig. 5, pl. 3 figs 1-5 [details]
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