Cheng-Hsiu Tsai; R. Ewan Fordyce (2018). «A new archaic baleen whale Toipahautea waitaki (early Late Oligocene, New Zealand) and the origins of crown Mysticeti». Royal Society Open Science. 5 (4): 172453. doi:10.1098/rsos.172453. PMC 5936954. PMID29765689.