Traits name details
original description
(of Pomacea bibliana W. B. Marshall & Bowles, 1932 †) Marshall, W. B. & Bowles, E. O. (1932). New fossil fresh-water mollusks from Ecuador. <em>Proceedings of the United States National Museum.</em> 82(2946): 1-7., available online at https://www.biodiversitylibrary.org/page/7608993 page(s): 4, pl. 1, figs 4-5 [details]
basis of record
Parodiz, J. J. (1969). The Tertiary non-marine Mollusca of South America. <em>Annals of the Carnegie Museum.</em> 40: 1-242., available online at https://www.biodiversitylibrary.org/page/54645900 page(s): 103-104, pl. 16, figs 2-3; note: Parodiz misspelt the subgenus as "Pseudoaperastoma" [details] Available for editors 
additional source
Nuttall, C. P. (1990). A review of the Tertiary non-marine molluscan faunas of the Pebasian and other inland basins of north-western South America. <em>Bulletin of The British Museum (Natural History), Geology Series.</em> 45(2): 165-371., available online at https://www.biodiversitylibrary.org/page/45474563 page(s): 341 [details]
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