Rasmussen, D. T., & Kay, R. F. (1992). A Miocene Anhinga from Colombia, and comments on the zoogeographic relationships of South America's Tertiary avifanua. In K. E. Campell (Ed.), Avian Paleontology (pp. 225–230). Los Angeles: Special Publication, Nat. Hist. Mus. of Los Angeles County, Los Angeles.

Rasmussen, D. T., and R. F. Kay. “A Miocene Anhinga from Colombia, and comments on the zoogeographic relationships of South America's Tertiary avifanua.” In Avian Paleontology, edited by K. E. Campell, 225–30. Los Angeles: Special Publication, Nat. Hist. Mus. of Los Angeles County, Los Angeles, 1992.

Rasmussen DT, Kay RF. A Miocene Anhinga from Colombia, and comments on the zoogeographic relationships of South America's Tertiary avifanua. In: Campell KE, editor. Avian Paleontology. Los Angeles: Special Publication, Nat. Hist. Mus. of Los Angeles County, Los Angeles; 1992. p. 225–30.

Rasmussen, D. T., and R. F. Kay. “A Miocene Anhinga from Colombia, and comments on the zoogeographic relationships of South America's Tertiary avifanua.” Avian Paleontology, edited by K. E. Campell, Special Publication, Nat. Hist. Mus. of Los Angeles County, Los Angeles, 1992, pp. 225–30.

Rasmussen DT, Kay RF. A Miocene Anhinga from Colombia, and comments on the zoogeographic relationships of South America's Tertiary avifanua. In: Campell KE, editor. Avian Paleontology. Los Angeles: Special Publication, Nat. Hist. Mus. of Los Angeles County, Los Angeles; 1992. p. 225–230.