title: The dilemma of trade samples and the importance of museum vouchers--caveats from a study on the extinction of Steller's sea cow: a comment on Crerar et al. (2014).
authors: Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, PO Box 37012, Washington, DC 20013-7013, USA pyensonn@si.edu.
authors: Nicholas D
authors: http://orcid.org/0000-0003-4678-5782
authors: ND
authors: Pyenson
authors: John D. Cooper Archaeology and Paleontology Center, Department of Geological Sciences, California State University, Fullerton, CA 92834, USA.
authors: James F
authors: JF
authors: Parham
authors: John D. Cooper Archaeology and Paleontology Center, Department of Geological Sciences, California State University, Fullerton, CA 92834, USA Department of Mammalogy, Natural History Museum of Los Angeles County, Los Angeles, CA 90007, USA.
authors: Jorge
authors: J
authors: Velez-Juarbe
mesh_terms: D000818:Animals; D053476:Extinction, Biological; D020453:Sirenia / Q000502:physiology*