Addicott, W. O. 1976. Molluscan paleontology of the lower Miocene Clallam Formation, northwestern Washington. U.S. Geological Survey Professional Paper, 976:1–44.
Baumel, J. J. and Witmer, L. M. 1993. Osteologia, . 45–132. Baumel, J. J., King, A. S., Breazile, J. E., Evans, H. E. and Vanden Berge, J. C., Handbook of Avian Anatomy: Nomina anatomica avium. .
Barnes, L. G. 1979. Fossil enaliarctine pinnipeds (Mammalia: Otariidae) from Pyramid Hill, Kern County, California. Contributions in Science, 318:1–41.
Barnes, L. G. 2006. A phylogenetic analysis of the Superfamily Platanistoidea (Mammalia, Cetacea, Odontoceti). Beiträge zur Paläontologie, 30:25–42.
Berta, A. 1991. New Enaliarctos∗ (Pinnipedimorpha) from the Oligocene and Miocene of Oregon and the role of “enaliarctids” in pinniped phylogeny. Smithsonian Contributions to Paleobiology, 69:1–33.
Boessenecker, R. W. and Smith, N. A. 2011. Latest Pacific Basin record of a bony-toothed bird (Aves, Pelagornithidae) from the Pliocene Purisima Formation of California, U.S.A. Journal of Vertebrate Paleontology, 31:652–657.
Bourdon, E. 2005. Osteological evidence for sister group relationship between pseudo-toothed birds (Aves: Odontopterygiformes) and waterfowls (Anseriformes). Naturwissenschaften, 92:586–591.
Bourdon, E. 2011. The pseudo-toothed birds (Aves, Odontopterygiformes) and their bearing on the early evolution of modern birds, . 209–234. Dyke, G. and Kaiser, G., Living Dinosaurs. The Evolutionary History of Modern Birds. John Wiley and Sons, Ltd., London.
Bourdon, E., Amaghzaz, M., and Bouya, B. 2010. Pseudotoothed birds (Aves, Odontopterygiformes) from the early Tertiary of Morocco. American Museum Novitates, 3704:1–71.
Bourdon, E. and Capetta, H. 2012. Pseudo-toothed birds (Aves, Odontopterygiformes) from the Eocene phosphate deposits of Togo, Africa. Journal of Vertebrate Paleontology, 32:965–970.
Brinkman, D. B. 2009. A sea turtle skull (Cheloniidae: Carettini) from the lower Miocene Nye Formation of Oregon, U. S. A. Paludicola, 7:39–46.
Brodkorb, P. 1963. Catalogue of fossil birds. Part 1 (Archaeopterygiformes through Ardeiformes). Bulletin, Florida State Museum, Biological Science 7, 4:179–293.
Cope, E. D. 1894. On Cyphornis, an extinct genus of birds. Journal of the Academy of Natural Sciences of Philadelphia, Series 2, 9:449–452.
Cracraft, J. 1985. Monophyly and phylogenetic relationships of the Pelecaniformes: a numerical cladistic analysis. Auk, 102:834–853.
Crowley, B., Barnes, L. G., and Goedert, J. L. 1999. An early Miocene cetacean assemblage from Washington State, and comparisons with other West Coast assemblages. Journal of Vertebrate Paleontology, 19:40A.
Dall, W. H. 1898. Tertiary fauna of Florida with especial reference to the Silex beds of Tampa and the Pliocene beds of the Caloosahatchie River including in many cases a complete revision of the generic groups treated of and their American Tertiary species. Transactions of the Wagner Free Institute of Sciences of Philadelphia, 3, part 4:1–947.
David, L. R. 1956. Tertiary anacanthin fishes from California and the Pacific Northwest; their paleoecological significance. Journal of Paleontology, 30:69–72.
Domning, D. P and Ray, C. E. 1986. The earliest sirenian (Mammalia: Dugongidae) from the eastern Pacific Ocean. Marine Mammal Science, 2:263–276.
Fitzgerald, E. M. G., Park, T., and Worthy, T. H. 2012. First giant bony-toothed bird (Pelagornithidae) from Australia. Journal of Vertebrate Paleontology, 32:971–974.
Fürbringer, M. 1888. Untersuchungen zur Morphologie und Systematik der Vögel, zugleich ein Beitrag zur Anatomie der Stütz- und Bewegungsorgane, 2 vols. Van Holkema, Amsterdam.
Goedert, J. L. 1989. Giant late Eocene marine birds (Pelecaniformes: Pelagornithidae) from northwestern Oregon. Journal of Paleontology, 63:939–944.
González-Barba, G., Schwennicke, T., Goedert, J. L., and Barnes, L. G. 2002. Earliest Pacific Basin record of the Pelagornithidae (Aves: Pelecaniformes). Journal of Vertebrate Paleontology, 22:722–725.
Hopson, J. A. 1964. Pseudodontornis and other large marine birds from the Miocene of South Carolina. Postilla, 83:1–19.
Howard, H. 1957. A gigantic ‘toothed' marine bird from the Miocene of California. Santa Barbara Museum of Natural History, Department of Geology Bulletin, 1:1–23.
Howard, H. 1968. Tertiary birds from Laguna Hills, Orange County, California. Los Angeles County Museum Contributions in Science, 142:1–21.
Howard, H. 1978. Late Miocene marine birds from Orange County, California. Los Angeles County Museum Contributions in Science, 290:1–26.
Howard, H. 1984. Additional avian records from the Miocene of Kern County, California, with the description of a new species of fulmar (Aves: Procellariidae). Bulletin, Southern California Academy of Sciences, 83:84–89.
Howard, H. and Warter, S. L. 1969. A new species of bony-toothed bird (Family Pseudodontornithidae) from the Tertiary of New Zealand. Records of the Canterbury Museum, 8:345–357.
Howard, H. and White, J. A. 1962. A second record of Osteodontornis, Miocene ‘toothed' bird. Los Angeles County Museum Contributions in Science, 52:1–12.
Lartet, E. 1857. Note sur un humérus fossile d'oiseau, attribué à un très-grand palmipède de la section des Longipennes. Comptes rendus hebdomadaires des Séances de l'Académie des Sciences (Paris), 44:736–741.
Lunt, D. J., Valdes, P. J., Haywood, A., and Rutt, I. C. 2008. Closure of the Panama Seaway during the Pliocene: implications for climate and Northern Hemisphere glaciation. Climate Dynamics, 30:1–18.
Matsuoka, H., Sakakura, F., and Ohe, F. 1998. A Miocene pseudodontorn (Pelecaniformes: Pelagornithidae) from the Ichishi Group of Misato, Mie Prefecture, Central Japan. Paleontological Research, 2:246–252.
Matsuoka, H., Koda, Y., Ono, K., and Hasegawa, Y. 2003. Pseudodontorn fossils from Japan, with preliminary observations on the maxilla specimen from the lower Oligocene Iwaki Formation, Fukushima, Japan. Bulletin of Gunma Museum of Natural History, 7:47–59.
Mayr, G. 2009. Paleogene Fossil Birds. Springer, Heidelberg.
Mayr, G. 2011. Cenozoic mystery birds—on the phylogenetic affinities of bony-toothed birds (Pelagornithidae). Zoologica Scripta, 40:448–467.
Mayr, G., Hazevoet, C. J., Dantas, P., and Cachão, M. 2008. A sternum of a very large bony-toothed bird (Pelagornithidae) from the Miocene of Portugal. Journal of Vertebrate Paleontology, 28:762–769.
Mayr, G., Peters, D. S., and Rietschel, S. 2002. Petrel-like birds with a peculiar foot morphology from the Oligocene of Germany and Belgium (Aves: Procellariiformes). Journal of Vertebrate Paleontology, 22:667–676.
Mayr, G. and Rubilar-Rogers, D. 2010. Osteology of a new giant bony-toothed bird from the Miocene of Chile, with a revision of the taxonomy of Neogene Pelagornithidae. Journal of Vertebrate Paleontology, 30:1313–1330.
Mayr, G. and Smith, T. 2010. Bony-toothed birds (Aves: Pelagornithidae) from the middle Eocene of Belgium. Palaeontology, 53:365–376.
Mayr, G. and Zvonok, E. 2011. Middle Eocene Pelagornithidae and Gaviiformes (Aves) from the Ukrainian Paratethys. Palaeontology, 54:1347–1359.
Mayr, G. and Zvonok, E. 2012. A new genus and species of Pelagornithidae with well-preserved pseudodentition and further avian remains from the middle Eocene of the Ukraine. Journal of Vertebrate Paleontology, 32:914–925.
Moore, E. J. 1963. Miocene marine mollusks from the Astoria Formation in Oregon. U.S. Geological Survey Professional Paper, 419:1–109.
Mourer-Chauviré, C. and Geraads, D. 2008. The Struthionidae and Pelagornithidae (Aves: Struthioniformes, Odontopterygiformes) from the late Pliocene of Ahl Al Oughlam, Morocco. Oryctos, 7:169–187.
Olson, S. L. 1984. A brief synopsis of the fossil birds from the Pamunkey River and other Tertiary marine deposits in Virginia, . 217–223. Ward, L. W. and Krafft, K., Stratigraphy and Paleontology of the Outcropping Tertiary Beds in the Pamunkey River Region, Central Virginia Coastal Plain. .
Olson, S. L. 1985. The fossil record of birds, . 79–238. Farner, D. S., King, J. R. and Parkes, K. C., Avian Biology, vol. 8. Academic Press, New York.
Olson, S. L. 1999. Early Eocene birds from eastern North America: a faunule from the Nanjemoy Formation of Virginia, . 123–132. Weems, R. E. and Grimsley, G. J., Early Eocene Vertebrates and Plants from the Fisher/Sullivan Site (Nanjemoy Formation) Stafford County, Virginia. Virginia Division of Mineral Resources Publication, 152.
Olson, S. L. and Rasmussen, P. C. 2001. Miocene and Pliocene birds from the Lee Creek Mine, North Carolina. Smithsonian Contributions to Paleobiology, 90:233–365.
Prothero, D. R. 2001. Chronostratigraphic calibration of the Pacific Coast Cenozoic: a summary, . 377–394. Prothero, D. R., Magnetic Stratigraphy of the Pacific Coast Cenozoic: SEPM Pacific Section No. 91. Society for Sedimentary Geology, Pacific Section, Los Angeles, CA.
Prothero, D. R., Bitboul, C. Z., Moore, G. W., and Niem, A. R. 2001a. Magnetic stratigraphy and tectonic rotation of the Oligocene Alsea, Yaquina, and Nye formations, Lincoln County, Oregon, . 184–194. Prothero, D. R., Magnetic Stratigraphy of the Pacific Coast Cenozoic: SEPM Pacific Section No. 91. Society for Sedimentary Geology, Pacific Section, Los Angeles, CA.
Prothero, D. R., Bitboul, C. Z., Moore, G. W., and Moore, E. J. 2001b. Magnetic stratigraphy of the lower and middle Miocene Astoria Formation, Lincoln County, Oregon, . 272–283. Prothero, D. R., Magnetic Stratigraphy of the Pacific Coast Cenozoic: SEPM Pacific Section No. 91. Society for Sedimentary Geology, Pacific Section, Los Angeles, CA.
Prothero, D. R. and Burns, C. 2001. Magnetic stratigraphy and tectonic rotation of the upper Oligocene–?lower Miocene (Type Pillarian Stage) Clallam Formation, Clallam County, Washington, . 234–241. Prothero, D. R., Magnetic Stratigraphy of the Pacific Coast Cenozoic: SEPM Pacific Section No. 91. Society for Sedimentary Geology, Pacific Section, Los Angeles, CA.
Prothero, D. R. and Hankins, K. G. 2000. Magnetic stratigraphy and tectonic rotation of the upper Eocene–lower Oligocene Keasey Formation, northwest Oregon. Journal of Geophysical Research, 105:16473–16480.
Prothero, D. R. and Hankins, K. G. 2001. Magnetic stratigraphy and tectonic rotation of the lower Oligocene Pittsburg Bluff Formation, Columbia County, Oregon, . 201–209. Prothero, D. R., Magnetic Stratigraphy of the Pacific Coast Cenozoic: SEPM Pacific Section No. 91. Society for Sedimentary Geology, Pacific Section, Los Angeles, CA.
Rasmussen, P. C. 1998. Early Miocene avifauna from the Pollack Farm Site, Delaware. Delaware Geological Survey Special Publication 21:149–151.
Scheirer, A. H. and Magoon, L. B. 2007. Age, distribution, and stratigraphic relationship of rock units in the San Joaquin Basin Province, California. U.S. Geological Survey Professional Paper, 1713:1–107.
Shufeldt, R. W. 1916. New extinct bird from South Carolina. Geological Magazine, New Series, Decade 6, 3:343–347.
Snavely, P. D. Jr., MacLeod, N. S., Wagner, H. C., and Rau, W. W. 1976. Geologic map of the Yaquina and Toledo quadrangles, Lincoln County, Oregon. U.S. Geological Survey Miscellaneous Investigations Series Map 1–867, scale 1:62,500.
Stidham, T. A. 2004. New skull material of Osteodontornis orri (Aves: Pelagornithidae) from the Miocene of California. PaleoBios, 24:7–12.
Tedford, R. H., Barnes, L. G., and Ray, C. E. 1994. The early Miocene littoral ursoid carnivoran Kolponomos: systematics and mode of life. Proceedings of the San Diego Society of Natural History, 29:11–32.
Welton, B. J. 1972. Fossil sharks in Oregon. The Ore Bin, 34:161–170.
Wetmore, A. 1917. The relationships of the fossil bird Palaeochenoides mioceanus. Journal of Geology, 25:555–557.
Wetmore, A. 1928. The systematic position of the fossil bird Cyphornis magnus. National Museum of Canada Bulletin, 49:1–4.