ReportSmithsonian Department of Anthropology report on cranium submitted by FBI20 June 20001 page
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Part 51, page 299

DB Cooper-21452

Document date 20 June 2000

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FBI 164-81, Vault Part 51 p. 299 (DB Cooper-21452), Report, dated 20 Jun 2000 — cooper.theunsolved.net/parts/Cooper-Part-51/pages/299

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Smithsonian National Museum of Natural History

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DEPARTMENT OF ANTHROPOLOGY telephone (202) 786-2505 fax (202) 357-2208

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DATE: June 20, 2000

TO: The Federal Bureau of Investigation, Washington, DC ATTN: [REDACTED]

FROM: [REDACTED] Department of Anthropology Smithsonian Institution, Washington, DC

SUBJECT: Forensic Case SI 679, FBI 00615033 GX, Seattle WA

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Material submitted consists of one human cranium and one animal bone. The cranium is well preserved, lacking soft tissue and apparently is filled with soil. The cranium is complete except for the right zygomatic arch area and six teeth. These missing materials appear to have been lost perimortem or not recent post-mortem, although the broken margin of the right malar shows some evidence of more recent fracture.

The sex of the individual is difficult to determine reliably because of the attributes presented. Metric analysis using Fordisc 2.0 indicated female sex, although the cranium is very robust.

Morphologically, the skull presents some characteristics of Asian ancestry, to include Native American populations, and metric analysis with Fordisc 2.0 was inconclusive but indicated some possible Asian ancestry.

The chewing surfaces of the teeth show extreme wear. Such extreme wear is unusual for a modern individual but is expected in the dentition of an individual of archeological context.

The cranial sutures show minimal closure. This information coupled with observations on the extent of dental formation, dental eruption, and general skeletal development suggests an age at death of likely between 25 and 35 years.

In summary, this cranium presents characteristics suggesting an archeological origin. It likely represents an individual of American Indian ancestry and considerable antiquity.

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SMITHSONIAN INSTITUTION National Museum of Natural History 10th & Constitution Avenue NW Washington DC 20560

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DB Cooper-21452