Yokoyama, M. (1904). On some Jurassic fossils from Rikuzen. <em>Journal of the College of Science, Imperial University of Tokyo.</em> 18, 1-13. page(s): 11, pl. 1, fig. 4 [details]
MolluscaBase eds. (2021). MolluscaBase. Cyrena elliptica Yokoyama, 1904 †. Accessed through: Marine Species Traits editorial board (2021) Marine Species Traits at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=1515610 on 2025-05-22
Marine Species Traits editorial board (2025). Marine Species Traits. Cyrena elliptica Yokoyama, 1904 †. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1515610 on 2025-05-22
original descriptionYokoyama, M. (1904). On some Jurassic fossils from Rikuzen. <em>Journal of the College of Science, Imperial University of Tokyo.</em> 18, 1-13. page(s): 11, pl. 1, fig. 4 [details]