Wible, John R.; Miao, Desui; Hopson, James A. The septomaxilla of fossil and recent synapsids and the problem of the septomaxilla of monotremes and armadillos. Zoological Journal of the Linnean Society. March 1990, 98 (3): 203–228. doi:10.1111/j.1096-3642.1990.tb01207.x.
medscape.com
emedicine.medscape.com
Nasal Anatomy. Medscape. June 2011 [3 December 2011]. (原始内容存档于2020-11-06).
Myers, P.; Espinosa, R.; Parr, C. S.; Jones, T.; Hammond, G. S.; Dewey, T. A. Premaxillae of bats. Animal Diversity Web. 2006 [3 December 2011]. (原始内容存档于2012-01-03).
Premaxilla. ZipCodeZoo. [3 December 2011]. (原始内容存档于2012-01-21).
Myers, P.; Espinosa, R.; Parr, C. S.; Jones, T.; Hammond, G. S.; Dewey, T. A. Premaxillae of bats. Animal Diversity Web. 2006 [3 December 2011]. (原始内容存档于2012-01-03).
zipcodezoo.com
Premaxilla. ZipCodeZoo. [3 December 2011]. (原始内容存档于2012-01-21).