Forensic ANTH Lab Week 8

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University of Oregon *

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176

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Anthropology

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Apr 3, 2024

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ANTH 176 Intro Forensic Anthropology LAB VIII: Biological Profile less that provides your justification for sex estimation of the individual using the features discussed in lecture and in our textbook, and an additional 100 words or less that provides your justification of ancestry of the individual. The report is at the end of the lab packet. Table 1, Ancestry traits (from Byers 2004) Feature: Nose Root Bridge Spine Lower border width Face Profile Shape Eye orbits Lower eye border Vault Browridges Muscle marks Vault sutures Postbregma Jaws and teeth Jaws Palatal shape Upper incisors European High, narrow High Pronounced Sharp (sill) Narrow Straight Narrow Angular Receding Heavy Rugged Simple Straight small Parabolic Spatulate African Low, rounded Low Small Guttered Wide Projecting Narrow Rectangular Receding small Smooth Simple Depressed Large Hyperbolic Spatulate Asian Low, ridged Low small Flat, sharp Medium Intermediate Wide Rounded Projecting Small Smooth Complex Straight Large Elliptical Shoveled

ANTH 176 Intro Forensic Anthropology LAB VIlI: Biological Profile LAB 8: Sex and Ancestry Estimation, Case Report Instructions: Read instructions carefully, and refer to the book chapters and lecture notes to complete the Lab. You are assuming the role of a Forensic Anthropologist. There were unidentified skeletal remains recovered from a location in Oregon, and you have been asked to assist in creating a biological profile by estimating ancestry on 1 skull, and sex on another skull and pelvis. You will be assigned two individuals; you will estimate biological sex on one, and ancestry on the other. Use the information from our Christensen book (chapter 8 on sex and chapter 9 on ancestry) as well as the class lecture slides and additional material in this lab packet. Estimate ancestry by analyzing useful features from lecture and the lab material below (see Table 1). The more features you consider, the better. In the second station, examine the remains and make notes of skeletal features that aid in your sex estimation (readings and lecture material, as well as the charts below). The more features you consider (Table 2, Phenice Method and Skull traits on pgs 3 & 4), the better. After you have estimated the biological sex and ancestry of your individual, you will write a short report of 100 words or 1

ANTH 176 Intro Forensic Anthropology LAB VIII: Biological Profile Table 2, Sexing traits of Pelvis (Christensen et al. 2019) ‘able 8.1 Other general differences between the female and male pelvis Ivic feature Female pelvis Male pelvis Tium Low, wide, flared High and vertical Pelvic inlet Ooval Heart-shaped Obturator foramen ‘Small and triangular Large and ovoid Greater sciatic notch Wider Narrower Preauricular sulcus Present Absent Sacral shape Short, wide, straight Long, narrow, curved Auricular surface (sacroiliac Elevated Flush with ilium articulation) Pubic bone shape Rectangular Triangular Acetabulum Smaller Larger Sacral dimensions Alae wider than A i promontory promontory Phenice method (modified, figure from Christensen 2019): VR0 ARR) TRITT

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