Mayer-Eymar, C. (1893). Description des coquilles fossiles des terrains tertiaires inférieurs (suite). <em>Journal de Conchyliologie.</em> 41: 51-61, pl. 2., available online athttps://www.biodiversitylibrary.org/page/15861674 page(s): 55-56, pl. 2, fig. 6 [details]
MolluscaBase eds. (2025). MolluscaBase. Cyrena circumsulcata Mayer-Eymar, 1893 †. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1562121 on 2025-05-15
Marine Species Traits editorial board (2025). Marine Species Traits. Cyrena circumsulcata Mayer-Eymar, 1893 †. Accessed at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=1562121 on 2025-05-15
original descriptionMayer-Eymar, C. (1893). Description des coquilles fossiles des terrains tertiaires inférieurs (suite). <em>Journal de Conchyliologie.</em> 41: 51-61, pl. 2., available online athttps://www.biodiversitylibrary.org/page/15861674 page(s): 55-56, pl. 2, fig. 6 [details]