Nelson, R. N. (1925). A contribution to the paleontology of the Martinez Eocene of California. <em>University of California Publications, Bulletin of the Department of Geological Sciences.</em> 15(11): 397-466, pls 49-61., available online athttps://babel.hathitrust.org/cgi/pt?id=cub.u183005803364&seq=5[details]
MolluscaBase eds. (2024). MolluscaBase. Cryptochorda (Lyrianella) lyrata R. N. Nelson, 1925 †. Accessed through: Marine Species Traits editorial board (2024) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1471903 on 2024-09-13
Marine Species Traits editorial board (2024). Marine Species Traits. Cryptochorda (Lyrianella) lyrata R. N. Nelson, 1925 †. Accessed at: https://marinespecies.org/traits/aphia.php?p=taxdetails&id=1471903 on 2024-09-13
original descriptionNelson, R. N. (1925). A contribution to the paleontology of the Martinez Eocene of California. <em>University of California Publications, Bulletin of the Department of Geological Sciences.</em> 15(11): 397-466, pls 49-61., available online athttps://babel.hathitrust.org/cgi/pt?id=cub.u183005803364&seq=5[details]
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