1. Forensic Anthropology Determining Ancestry from human remains
Mrs. MacWilliams
CSI Forensic Science

2. How to Use Calipers- Inside

3. Ancestry Determination- Skull
Measure nasal width
Measure nasal height
Nasal width ÷ nasal height = nasal index
Nasal index
Caucasion = <.48
Mongoloid (Asian) =
Negroid (African) = > .53

4. Nasal Index Measuring
USING THE “INSIDE” MEASUREMENT, MEASURE FROM THE INSIDE OF NASAL SPINE TO INSIDE OF THE SUTURE LINE OF NASAL BONES.

5. Measure for nasal index
Caucasoid- Figure 22
Mongoloid- Figure 23
Negroid- Figure 24
**OBTAIN LAMINATED SHEETS FOR FIGURES FROM MRS. MACWILLIAMS
Use a ruler to measure nasal width and divide by nasal height to get nasal index of each.
Write in calculations under the Table 5 for each ancestry.

6. Nasal Spine Caucasion = prominent Mongoloid = somewhat prominent
Negroid= very small

7. Nasal Silling/Guttering
Feel the base of the nasal cavity on either side of the nasal spine
Caucasion = sharp (silling)
Mongloid = rounded
Negroid = no ridge (guttering)

8. Prognathism
Prognathic = jaw sticks out and away from face (use pencil from nasal spine to chin to determine)
Caucasian = straight
Mongoloid = variable
Negroid = Prognathic

10. Shape of Orbital Openings
Negroid Caucasian Mongoloid
-Rectangular Rounded Rounded
Somewhat Somewhat
square circular

11. A Caucasian
B Negroid
C Mongoloid

12. PICTURES
Measure the 3 pictures of the caucasoid, mongoloid, and negroid skull to determine nasal index of each as a comparison for yours.

13. Femur
SKELETONS 1&2 ONLY
Lay femur on table so lesser trochanter is closest to table.
Place palm of hand flat on table and slide fingers under the curvature of shaft.
Caucasian = hand fits under
Negroid = Hand does not fit under