(of)Cowper Reed F. R. (1927). Palæontological Notes on the Silurian Inlier of Woolhope. <em>Quarterly Journal of the Geological Society of London.</em> 83(1-5): 531-550., available online athttps://doi.org/10.1144/gsl.jgs.1927.083.01-05.21 page(s): 546-547, pl. XLI, fig. 7, a, b [details] Available for editors
MolluscaBase eds. (2025). MolluscaBase. Prosoptychus baccatus (Cowper Reed, 1927) †. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=1770883 on 2025-05-11
Marine Species Traits editorial board (2025). Marine Species Traits. Prosoptychus baccatus (Reed, 1927) †. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1770883 on 2025-05-11
original description(of)Cowper Reed F. R. (1927). Palæontological Notes on the Silurian Inlier of Woolhope. <em>Quarterly Journal of the Geological Society of London.</em> 83(1-5): 531-550., available online athttps://doi.org/10.1144/gsl.jgs.1927.083.01-05.21 page(s): 546-547, pl. XLI, fig. 7, a, b [details] Available for editors