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"Research & Collection News"(PDF). Paleontology. Natural History Museum of Los Angeles County. May 2006. Archived from the original(PDF) on 30 September 2007. Retrieved 29 April 2010.
"Research & Collection News"(PDF). Paleontology. Natural History Museum of Los Angeles County. May 2006. Archived from the original(PDF) on 30 September 2007. Retrieved 29 April 2010.