MolluscaBase taxon details
original description
Gabb, W. M. (1860). Descriptions of new species of American Tertiary and Cretaceous fossils. <em>Journal of the Academy of Sciences of Philadelphia, Second Series.</em> 4: 375-404, pls. 67-69., available online at https://biodiversitylibrary.org/page/36862263
page(s): 376, pl. 67, figs. 1–4 [details]
basis of record
Yancey, T. E.; Garvie, C. L.; Wicksten, M. (2010). The Middle Eocene <i>Belosaepia ungula</i> (Cephalopoda: Coleoida) from Texas: structure, ontogeny and function. <em>Journal of Paleontology.</em> 84(2): 267-287., available online at https://doi.org/10.1666/09-018r.1 [details]