New Late Eocene and Oligocene Remains of the Flightless, Penguin-Like Plotopterids (Aves, Plotopteridae) from Western Washington State, U.S.A.

G. Mayr, and J. L. Goedert

2016

Article

Journal of Vertebrate Paleontology 36(4):

Find it at:

http://dx.doi.org/10.1080/02724634.2016.1163573