Yehara, S. (1923). Cretaceous Trigoniae from southwest Japan. <em>Japanese Journal of Geology and Geography.</em> 2: 59-84. page(s): 81, pl. 8, figs 1-3, pl. 9, fig. 6 [details]
MolluscaBase eds. (2025). MolluscaBase. Trigonia naumanni Yehara, 1923 †. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1474017 on 2025-05-16
Marine Species Traits editorial board (2025). Marine Species Traits. Trigonia naumanni Yehara, 1923 †. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1474017 on 2025-05-16
original descriptionYehara, S. (1923). Cretaceous Trigoniae from southwest Japan. <em>Japanese Journal of Geology and Geography.</em> 2: 59-84. page(s): 81, pl. 8, figs 1-3, pl. 9, fig. 6 [details]