Gerald Mayr; Vanesa L. De Pietri; Leigh Love; Al A. Mannering; R. Paul Scofield (2018). A well-preserved new mid-Paleocene penguin (Aves, Sphenisciformes) from the Waipara Greensand in New Zealand. Journal of Vertebrate Paleontology. Online edition: e1398169. doi:10.1080/02724634.2017.1398169.