Modesto, S.; and Rubidge, B. A basal anomodont therapsid from the Lower Beaufort Group, Upper Permian of South Africa. Journal of Vertebrate Paleontology. 2000, 20 (3): 515–521. doi:10.1671/0272-4634(2000)020[0515:ABATFT]2.0.CO;2.引文使用过时参数coauthors (帮助)