Northern Elephant Seal (Mirounga angustirostris) - PC-72, ©1986, Box: 5, Folder: 41, item: 9. Natural History Art and Illustration by D. D. Tyler, MS 337. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/310676 Accessed June 22, 2025.