(of)Howchin, W. (1889). The Foraminifera of the Older Tertiary of Australia (No. 1, Muddy Creek, Victoria). <em>Transactions and Proceedings and Report of the Royal Society of South Australia.</em> 12: 1-20., available online athttps://www.biodiversitylibrary.org/part/79279#/summary[details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2021). World Foraminifera Database. Hofkerina semiornata (Howchin, 1889) †. Accessed through: Marine Species Traits editorial board (2021) Marine Species Traits at: http://marinespecies.org/traits/aphia.php?p=taxdetails&id=710512 on 2025-05-19
Marine Species Traits editorial board (2025). Marine Species Traits. Hofkerina semiornata (Howchin, 1889) †. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=710512 on 2025-05-19
original description(of)Howchin, W. (1889). The Foraminifera of the Older Tertiary of Australia (No. 1, Muddy Creek, Victoria). <em>Transactions and Proceedings and Report of the Royal Society of South Australia.</em> 12: 1-20., available online athttps://www.biodiversitylibrary.org/part/79279#/summary[details]