Wilckens, O. (1927). Contributions to the palaeontology of the New Zealand Trias. <em>New Zealand Geological Survey Paleontological Bulletin.</em> 12: I-VIII, 1-65. page(s): 38, pl. 8, figs 8, 9 [details]
MolluscaBase eds. (2025). MolluscaBase. Trigonodus thomsonianus Wilckens, 1927 †. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1064626 on 2025-05-23
Marine Species Traits editorial board (2025). Marine Species Traits. Trigonodus thomsonianus Wilckens, 1927 †. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1064626 on 2025-05-23
original descriptionWilckens, O. (1927). Contributions to the palaeontology of the New Zealand Trias. <em>New Zealand Geological Survey Paleontological Bulletin.</em> 12: I-VIII, 1-65. page(s): 38, pl. 8, figs 8, 9 [details]