Marwick, J. (1944). New Zealand fossil and recent Cardiidae (Mollusca). <em>Transactions of the Royal Society of New Zealand.</em> 74 (3): 255-272, pl. 35-37.[details]
MolluscaBase eds. (2021). MolluscaBase. Trachycardium (Ovicardium) Marwick, 1944 †. Accessed through: Marine Species Traits editorial board (2021) Marine Species Traits at: http://marinespecies.org/traits/aphia.php?p=taxdetails&id=828076 on 2025-09-19
Marine Species Traits editorial board (2025). Marine Species Traits. Trachycardium (Ovicardium) Marwick, 1944 †. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=828076 on 2025-09-19
original descriptionMarwick, J. (1944). New Zealand fossil and recent Cardiidae (Mollusca). <em>Transactions of the Royal Society of New Zealand.</em> 74 (3): 255-272, pl. 35-37.[details]
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