Schwager, C. (1877). Quadro del proposto sistema di classificazione dei foraminiferi con guscio. <em>Bolletino R. Comitato Geologico d'Italia.</em> 8: 18-27., available online athttps://biodiversitylibrary.org/page/53535675[details]
Hayward, B.W.; Le Coze, F.; Gross, O. (2018). World Foraminifera Database. Planorbulinoidea Schwager, 1877. Accessed through: (Eds) (2018) Register of Antarctic Species at: http://ras.biodiversity.aq/aphia.php?p=taxdetails&id=465851 on 2019-11-24
(Eds) (2019). Register of Antarctic Species. Planorbulinoidea Schwager, 1877. Accessed at: http://ras.biodiversity.aq/aphia.php?p=taxdetails&id=465851 on 2019-11-24
original descriptionSchwager, C. (1877). Quadro del proposto sistema di classificazione dei foraminiferi con guscio. <em>Bolletino R. Comitato Geologico d'Italia.</em> 8: 18-27., available online athttps://biodiversitylibrary.org/page/53535675[details]
additional sourceLoeblich, A. R.; Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York. 970pp., available online athttps://books.google.pt/books?id=n_BqCQAAQBAJ[details] Available for editors