Billings, E. (1875). On some new genera and species of Palaeozoic Mollusca. <em>The Canadian Naturalist, new series.</em> 7(5): 301-302., available online athttps://www.biodiversitylibrary.org/page/7713914 page(s): 301 [details]
MolluscaBase eds. (2025). MolluscaBase. Ilionia Billings, 1875 †. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1673527 on 2025-05-24
Marine Species Traits editorial board (2025). Marine Species Traits. Ilionia Billings, 1875 †. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=1673527 on 2025-05-24
original descriptionBillings, E. (1875). On some new genera and species of Palaeozoic Mollusca. <em>The Canadian Naturalist, new series.</em> 7(5): 301-302., available online athttps://www.biodiversitylibrary.org/page/7713914 page(s): 301 [details]
basis of recordFang, Z.-J.; Cope, J. C. W. (2004). Early Ordovician bivalves from Dali, West Yunnan, China. <em>Palaeontology.</em> 47(5): 1121-1158., available online athttps://doi.org/10.1111/j.0031-0239.2004.00403.x page(s): 1145 [details] Available for editors