original description
Guppy, R. J. L. (1874). On the West Indian Tertiary fossils. <em>The Geological Magazine, new series, Decade 2.</em> 1(9):404-411, pls. 16-17; 1(10): 433-446 [Plate 18 was published in Vol. 1(10).]., available online at https://www.biodiversitylibrary.org/page/32525721
page(s): 410-411, pl. 16, fig. 1 [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): 362; note: As Phos cf. erectus [details]
From editor or global species database
Type locality Type locality not given [details]