Biological and Physical Anthropology Commons^™

Ischiopubic Index: A Metric Approach To Estimating Sex In The Pelvic Region, Tripoli G. Mulvihill

Chancellor’s Honors Program Projects

No abstract provided.

Age And Inclusivity In Umm An-Nar Communal Tombs From Southeastern Arabia, Lesley A. Gregoricka, Jaime M. Ullinger, Christian Berends, Alyssa Bolster, Brittany Clark, Hannah Jeanlouis, Urvi Kaul, Rachael Orkin

Year 2: AABA 2022 – Denver, CO

Umm an-Nar (2700-2000 BCE) tombs in the United Arab Emirates contained the commingled remains of hundreds of individuals interred across multiple generations. Archaeologists commonly reference tomb demographics as being inclusive of all ages, but this assumption is based on a handful of studies that rarely distinguish age categories beyond “subadult” or “adult.” An undergraduate research training program sought to examine age distributions – and thus inclusivity in tomb membership – in greater detail, with a particular focus on fetal and older adult age categories.

A combination of traditional and novel aging techniques were applied to bones from tombs Unar 1 …

A Transition From Tradition: Employing Ta3 And Traditional Age & Sex Estimation Methods To Study Paleodemography In Umm An-Nar Arabia, Alyssa Bolster, Hannah Jeanlouis, Lesley A. Gregoricka, Jaime M. Ullinger

Year 2: AABA 2022 – Denver, CO

Background: Transition Analysis 3 (TA3) has enormous potential for the study of commingled skeletal material. Previous demographic analyses on commingled remains from Umm an-Nar (2700-2000 BCE) tombs Unar 1 and Unar 2 at the site of Shimal (Ras al-Khaimah, UAE) placed the majority of individuals in a generalized “adult” category using dental eruption. We hypothesized that we would identify more older adults (50+) in both tombs using TA3, and that more would be found in Unar 2, prior to the intensification of agriculture and regional aridification.

Methods: Commingled and fragmentary skeletal fragments (pubic symphyses (n=51), humeri (n=85), femora (n=194)) were …

Assessing The Precision Of Cranial And Mandibular Morphoscopic Traits From 3d Surface Scans, Sarah Thomas Schwing

Masters Theses

Virtual anthropological (VA) methods have been successfully used to capture metric data in the form of standard caliper measurements as well as volumetric data from various human skeletal elements. Virtual anthropological investigations of morphoscopic traits have increased over the past two decades, however, greater attention has been paid to investigations of metric data and to the use of CT technologies. Few studies have focused on morphoscopic data and fewer have employed 3D surface scans in data collection. Morphoscopic VA studies largely pertain to age estimation using the os coxa; fewer pertain to sex estimation and, to the author’s knowledge, no …

Using The Seventh Rib Length And Depth Measurements As A Method To Estimate Ancestry And Sex In Adults, Alexandria M. Amaki

LSU Master's Theses

This study tested the correlation of dimensions of the left seventh rib (L7) to ancestry and sex in adult humans. The first hypothesis, based on Bergmann’s theory, is that Black (African-American) individuals will have smaller L7 dimensions than White individuals (Americans of primarily European descent). The second hypothesis is that males, due to sexual dimorphism, will have larger ribs than females. 299 individuals from the Hamann-Todd Skeletal Collection were used in the study, approximately evenly distributed among sex and ancestry groups. Five variables were examined, including three measurements (length, width, and width point), and two calculations (area and ratio). A …

An Examination Of Sex Distributions In Umm An-Nar Tombs From Bronze Age Arabia Using The Distal Humerus, Charles Downey, Silvio Ernesto Mirabal Torres, Lesley A. Gregoricka, Jaime M. Ullinger

Year 1: AAPA 2021 – virtual

Background: Umm an-Nar (2700-2000 BCE) communal tombs from southeastern Arabia contain human skeletal remains characterized by extensive commingling and variable degrees of burning. Because of this, few bioarchaeological studies have been conducted examining the proportions of males to females in these monumental tombs. We hypothesized that increased social stratification in the late Umm an-Nar period would lead to a higher number of males interred in Umm an-Nar tombs over time.

Methods: To estimate sex, we measured four features of the distal humeri from tombs Unar 1 (2400-2200 BCE) and Unar 2 (2300-2100 BCE). Heat-induced changes to bone from cremation were …

Mni And Sex Estimation In Two Umm An-Nar Tombs From The Uae, Jaime M. Ullinger, Lesley A. Gregoricka, Chaylee Arellano, Quentin Burke, Victoria Calvin, Charlie Downey, Rachel Heil, Alyssa Mcgrath, Silvio Ernesto Mirabal Torres, Jeremy Simmons

Year 1: AAPA 2021 – virtual

Commingled tombs are often overlooked in bioarchaeological studies because of the difficult nature of analysis, despite their prevalence across the ancient world. Tombs Unar 1 (U1) and Unar 2 (U2), located in the United Arab Emirates, date to the Umm an-Nar period (2700-2000 BCE), when people witnessed shifts in mortuary practices likely reflective of broader changes in subsistence and social organization. A collaborative project that trains undergraduates in anthropological research has examined tomb membership for U1 and U2 by estimating MNI and sex. Despite early descriptions of U1 and U2 holding similar numbers of individuals, this project found that MNI …

Sex Estimation For Early Bronze Age Arabian Tombs Using The Temporal Bone, Victoria Calvin, Jeremy Simmons, Lesley A. Gregoricka, Jaime M. Ullinger

Year 1: AAPA 2021 – virtual

Background: The Umm an-Nar period (2700-2000 BCE) in the United Arab Emirates was marked by the appearance of settlements, oasis agriculture, and fortification towers, suggesting increasing stratification. Conversely, mortuary practices indicate equality based on commingling of community members. Based on other tombs in the region, it was hypothesized that sex ratios would not differ between tombs Unar 1 (U1; 2400-2200 BCE) and Unar 2 (U2; 2300-2100 BCE).

Methods: Sex was estimated using robusticity of the mastoid process and the lateral angle of the internal auditory meatus for the temporal bone. As cremation was part of the mortuary ritual and could …

Assessing Methods For Estimating Biological Sex From Subadult Skeletal Elements, Dorota Zabnicka

Cal Poly Humboldt theses and projects

While methods for estimating the sex of adult skeletons are relatively accurate, these methods are often inconclusive when applied to subadults (non-adults), especially when many secondary sexual characteristics have not fully developed. Furthermore, existing methods for subadults are often tested on samples with relatively homogenous ancestries, calling into question their reliability in more diverse populations. This thesis reviewed techniques for estimating sex in subadult skeletal remains, and the most promising methods were retested on individuals of known sex between ages 3 and 17 years (n=39, 14 males, 25 females) from the Hamann-Todd Osteological Collection. Data collection included measurements of the …

The Influence Of Body Size On Sexual Dimorphism, Haley Elizabeth Horbaly

Masters Theses

Accurate sex estimation of human skeletal remains is imperative for skeletal biologists, and relies upon the sexual dimorphism between males and females in a population. The degree of dimorphism, and hence the accuracy of sex estimation methods, are known to vary among populations, and while such global patterns have been well studied, the underlying causes of this variation are relatively unclear. Body size—a sexually dimorphic trait that also varies among populations—has previously been shown to affect skeletal morphology, yet whether specific body size parameters, such as stature and body mass, influence the expression of traits used for nonmetric sex estimation …

The Efficacy Of Carpal Bones In Sex Estimation Of American Whites, Ashleigh Watson

Chancellor’s Honors Program Projects

No abstract provided.