Traits name details
original description
(of ) Guppy, R. J. L., Woodward, H. & Jones, T. R. (1866). On the relations of the Tertiary formations of the West Indies. With a note on a new species of <i>Ranina</i>; and on the <i>Orbitoides</i> and Nummulinae. <em>The Quarterly Journal of the Geological Society of London.</em> 22: 570-593, pl. 26., available online at https://www.biodiversitylibrary.org/page/36165023 page(s): 579-580, pl. 26, fig. 9 [details]
basis of record
Mansfield, W. C. (1925). Miocene gastropods and scaphopods from Trinidad, British West Indies. <em>Proceedings of the United States National Museum.</em> 66(2559): 1-65, pls. 1-10., available online at https://repository.si.edu/bitstream/handle/10088/15365/USNMP-66_2559_1925.pdf page(s): 33 [details]
additional source
Maury, C. J. (1925). A further contribution to the paleontology of Trinidad (Miocene Horizons). <em>Bulletins of American Paleontology.</em> 10(42): 153-402, pls. 1-43., available online at https://www.biodiversitylibrary.org/page/32509152 page(s): 349-350, pl. 33, figs. 7, 11 [details]
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