Biological and Physical Anthropology Commons^™

Fundamental Uncertainties Invalidate The Precision Of Obsidian Hydration Dating: A Rapa Nui Case Study, Robert Dinapoli, Carl P. Lipo

Anthropology Datasets

Obsidian hydration dating (OHD) measures water absorption into volcanic glass to estimate artifact age. Recent studies using infrared photoacoustic spectroscopy (IR-PAS) claim ±30-year precision, comparable to radiocarbon dating. We tested these claims by applying Bayesian hierarchical models to 242 published IR-PAS measurements from Rapa Nui (Easter Island). Standard OHD practice treats burial temperature and humidity as known constants; we instead modeled them as uncertain variables and propagated that uncertainty through the rate equation. Realistic dating uncertainties are ±300 years, ten times larger than the claimed value. The 95% credible interval for any individual date (~600 years) exceeds Rapa Nui's entire …

Impairment And Disability In Mesoamerica: Bioarchaeological Evaluation And Interpretation Of The Maya Of Palenque, Dayanira Lopez

UNLV Theses, Dissertations, Professional Papers, and Capstones

The application of disability theory to the past is of growing interest among bioarchaeologists, both nationally and internationally. However, its application poses greater challenges when considering ancient contexts, such as Mesoamerica. Nonetheless, engagement with disability studies has led to the development of various theoretical frameworks in bioarchaeology, including dis/ability. This model views physical impairment as a fluid state that may exhibit adaptability and resilience rather than a biological deficit. Importantly, it views ability on a spectrum and does not make assumptions about social and cultural perceptions of ability where there is a lack of contextual data. Thus, it is a …

An Alignment Of Absences: The Medicalization Of Death And Its Implications On Archaeological Methodology, Makayla J. Bowman

Departmental Honors & Graduate Capstone Projects

Absence describes something that is "expected, wanted, or looked for [but] is not present or does not exist," (Merriam-Webster Dictionary 2026). The archaeological discipline interacts with absence in many profound ways, largely in its study of the past dead. This paper focuses on the ways in which the medicalization of death has influenced, limited, and misaligned archaeological methodology, and how the result of those methodologies produces archaeological analysis that is absent of or misrepresents our understanding of life, personhood, and our position within a greater, interconnected biosphere. Thus, I present an anthropological critique of the ways in which death and …

The Evolution Of Self-Awareness In Conscious Organisms, Robert A. Dielenberg

Journal of Conscious Evolution

Self-awareness in conscious organisms remains an enduring puzzle for philosophers and neuroscientists. This paper proposes a tripartite evolutionary model tracing its emergence through three sequential types: the sensory self (primitive egocentric, valence-tagged awareness of sensory states), the bodily self (external objectification of the body as a distinct entity, evidenced by mirror self-recognition in select species), and the cognitive self (internal objectification of the mind enabling recursive self-transformation). Adopting a monist framework, the model treats consciousness as the biological substrate of delayed neural apperception (the “Delayed Present”), within which selves emerge as increasingly sophisticated models. It distinguishes non-human metacognition—implicit, online regulation—from …

Qualitative Versus Quantitative Analysis Of Entheses: Using An Ordinal Scale And 3d Scanned Metrics To Understand Entheseal Differences In The Charity Hospital Cemetery (16or108), Gillian Stewart

LSU Master's Theses

Using a sample from New Orleans’ Charity Hospital Cemetery (16OR108), an analysis between ordinal scores and digital quantitative analysis (DQA) measurements of the entheses (muscle attachment sites) was performed. The skeletal elements (n = 235) examined were the humerus, radius, femur, and tibia. The entheses were 3D scanned using an Artec Space Spider scanner and processed with the Artec Studio Professional© v.2018 and Geomagic Wrap® v.2021 software. Entheses were analyzed by: left and right sides, male and female, and distribution of scores across elements. The analyses yielded significant differences between proliferative and erosive score distribution. Scores between elements exhibited variation. …

Can Palm Logs Float? Evaluating The Physical Viability Of Raft Transport For Rapa Nui Moai, Carl Philipp Lipo, Terry L. Hunt

Anthropology Datasets

Recent suggestions that palm log rafts may have transported moai statues on Rapa Nui require evaluation of whether fresh palm wood can provide sufficient buoyancy for multi-ton cargo. This analysis integrates experimental flotation tests, structural analyses of palm stem anatomy, and buoyancy calculations using modern palm analogs to reconstruct the extinct Rapa Nui palm. Fresh palm logs sink when placed in water because of their internal structure: stems consist of approximately 20% liquid by volume, contained within thousands of water-filled vascular tubes, surrounded by a thin, brittle cortex. This yields effective densities of 800-1,200 kg/m³ that approach or exceed seawater …

Assessing The Effectiveness Of The One Paleopathology Workshop, Julianne R. Stamer, Mario Apata Mamani, Bernardo Arriaza, Robin Bendrey, Kelly Blevins, Tessa Campbell, Nicole Gottdenker, Rebecca Gowland, Haagen Klaus, Carina Marques

Anthropology Faculty Publications

Background and objectives: One Paleopathology is a novel concept in Paleopathology that extends the One Health paradigm into the past. A workshop at the University of Durham, UK, was held prior to the 2024 International Society for Evolution, Medicine, and Public Health (ISEMPH) meeting, firstly to define and expand the concept of One Paleopathology and secondly to generate transdisciplinary research and outreach under this framework. This article presents a logic model to evaluate how effectively the workshop met its goals.

Methodology: Two surveys were conducted, one immediately following the workshop and at the 1-year mark. These surveys assess the direct …

Endocranial Lesions: A Paleopathological Study Of Late Medieval Skeletal Remains From Żelewo Poland, Francesca Aleen Meyer

Cal Poly Humboldt theses and projects

The site of Żelewo is located in a rural area of northwestern Poland, a region historically known as Pomerania. Skeletal remains from the cemetery associated with the archaeological site Żelewo 1-3, dating mostly to the 13th-15th centuries, are likely associated with a nearby Cistercian monastery. Numerous individuals from this site show evidence of endocranial lesions. To evaluate potential factors associated with the lesions, a differential diagnosis was performed based on macroscopic observations of endocranial lesion morphology and distribution. This study takes into account estimated age at death, biological sex, and other signs of pathology in the body. Potential confounding factors, …

Non-Destructive Hhxrf Archaeometry For Grouping Individuals Via Trace Element Analysis Of Dental Remains, Griffon G. Binkowski

Graduate Studies Theses and Dissertations 2026

Handheld X-ray fluorescence (HHXRF) spectrometry has been validated as an accurate, non-destructive method for analyzing archaeological osseous materials. This study utilizes HHXRF to address key bioarchaeological questions, including population differentiation, individuation, and the interpretation of bioaccumulated trace elements versus diagenetic impacts. Using dental enamel from the Maya site of Altun Ha, Belize (n=20) and several Roman-Christian sites in the Dakhleh Oasis in Egypt (n=6), the occlusal surface of molar crowns was assayed in air using a Bruker Tracer III- equipped with a 12 mil Al, 1 mil Ti, 6 mil Cu filter. Semi-quantitative trace element ratios (Sr/Ca, Fe/Ca, and Zn/Ca) …

Did Our Prehistoric Ancestors Engage In Mortuary Practices?, Regina E. Mcrae

Undergraduate Research Posters

Abstract

Mortuary practice is defined as how humans dispose of and treat their dead. We are familiar with elaborate burials such as the entombment of pharaohs in the pyramids at Giza; Necropolises of the Valley of the Kings and Queens; the Mausoleum at Halicarnassus; the Taj Mahal in India; Viking funeral pyres on boats; and the modern jazz funerals of New Orleans. Caring for our dead is believed to be a modern concept, practiced by Homo Sapiens. However, archeological excavations and scientific analyses show burial practices predate modern man, practiced by our ancient ancestors such as Neanderthal, Homo Naledi, and …

Coastal Consumption: Diet And Social Organization At Four Postclassic Sites In The Yucatán Peninsula, Paramita Choudhury

Graduate Theses and Dissertations

This research examines Postclassic Maya food practices during CE 1200–1600 to understand how eating behaviors reflect systems of social hierarchy, political economy, and cultural identity. The investigation focuses on four archaeological sites in the northern Yucatán Peninsula—Tulum, El Rey, El Meco, and San Miguelito—to examine dietary behaviors through dental microwear texture analysis (DMTA), oral pathology, and stable isotope data within a biocultural framework. The research aims to identify whether elite and non-elite individuals exhibited notable variations in food texture consumption, access to resources, and nutritional health. High-resolution 3D surface metrology enabled DMTA to assess the mechanical properties of consumed foods, …

Who Was Skull #0025336? A Forensic Anthropological Analysis Of Human Remains, Evelyn R. Wendland

Undergraduate Honors Theses

Biological anthropology identifies human remains to learn more about the individual or the ancient community from which they originate. Two subdisciplines of biological Anthropology that focus on osteology—the study of bones— are Forensic Anthropology and Biorchaeology. Forensic anthropology is the study of human remains associated with the legal process. They specifically analyze remains from post-1950. Biorchaeology also looks at human remains but in a historical and/or archaeological context. As osteologists analyze human remains, they typically try to create a biological profile. The biological profile includes classifications of ethnicity (ancestry), age, sex, and stature, as well as aspects of pathology and …

The Commodification Of Native American Remains: The Use Of Native American Remains Within Educational Institutions And The Implementation Of Nagpra, Molly Nowak

Honors Program: Senior Projects (Public)

Indigenous communities have been commodified within educational institutions such as museums, universities, and governmental agencies throughout American history. Unethical collection practices have allowed for a disproportionate representation of Indigenous remains and materials within educational institutions. Indigenous bodies, funerary objects, religious materials, and other important cultural materials have been stolen from their communities and used for scientific discovery and education. The Native American Graves Protection and Repatriation Act (NAGPRA), passed in 1990, created legal protections for Indigenous graves and remains and instigates the return of the stolen materials. This project reviews the historical contexts behind the collection of Indigenous remains, the …

Interobserver Agreement Of Human Osteological Analysis On The Szeged, Hungary Skeletal Collection, Alleyia Bailey

All Theses

Biological anthropologists develop human skeletal biological profiles to identify skeletal remains and build demographic knowledge of past and modern peoples. Biological anthropologists estimate age-at-death, sex, stature, ancestry, and the presence of injury or pathology to develop biological profiles. While biological profiles are at the basis of the work anthropologists perform, there is a lack of research concerning the reproducibility and interobserver agreement rates of the methods used to create biological profiles. Due to the risk of variability stemming from the education, training, and experience of observers, along with variation that can arise from population affinity, examining the interobserver agreement rates …

Reassessing The Role Of Polynesian Rats (Rattus Exulans) In Rapa Nui (Easter Island) Deforestation: Faunal Evidence And Ecological Modeling, Terry L. Hunt, Carl P. Lipo

Anthropology Datasets

The role of introduced Polynesian rats (Rattus exulans) in the deforestation of Rapa Nui remains a contentious issue. Several critics, including Mieth and Bork (2010), argue that rats played a negligible role compared to human impacts. We address the role of rats through three lines of evidence: (1) a response to rats-are-neglible arguments, including problematic continental analogies and misunderstandings of seed predation impacts; (2) analysis of rat remains from Anakena excavations (1986-2005) showing that rats decreased by 93% over time, contradicting claims they served as a “fallback food” following resource depletion; and (3) ecological modeling demonstrating that introduced …

Geophysics, And Capturing Ethnographic Interviews Of A Tidal Plantation Burial Ground, Kristin M. Meeuwen (Dew)

College of Graduate Studies: Theses & Dissertations

Plantation development in Chatham County has a rich but incomplete history. Silk Hope, an Ogeechee District tidal plantation, is located seven miles from the city of Savannah on the Northern banks of the Little Ogeechee River. This project focuses on identifying the site boundaries of portions of Silk Hope Plantation and its historical background. Specifically, the project focused on delineating the boundaries of the associated cemetery and/or burial grounds, while estimating the number of individuals interred there using ground-penetrating radar (GPR). Finally, collaborative work with community members, including stakeholder and descendant interviews, will provide ethnographic insights into the site's history …

Should Human Remains Be On Display In Museums?, Erik Schulz

Nebraska Anthropologist

The debate of should human remains be displayed in museums, exhibits, classrooms, and other public areas has been a topic of discussion in recent years. This article aims to explore the positives and negatives of displaying remains through scientific racism, decolonization, ethics, and forensic anthropology. Although these characteristics may not always be present in a collection, they are common concerns, and they are also not the only concerns for displaying remains. The objective of examining this issue from multiple perspectives is to propose viable solutions for the ethical and appropriate display of human remains. This research will be geared more …

Role Of C4 Resources In Isotopic Variability In Diet Among Children From Kellis 2 Cemetery, Dakhleh Oasis, Egypt, Faith R. Hendrix

Honors Undergraduate Theses

Using stable carbon isotope analysis, this study investigates dietary diversity in children buried at the Kellis 2 Cemetery (c. AD 50–450) in Egypt's Dakhleh Oasis. From the analysis of δ¹³C isotope values in hair keratin and bone collagen, the study reconstructs short-term and long-term dietary signals in juvenile and adult subjects. The aim is to clarify the role of C₄ plants—particularly millet—in weaning and childhood diets in a Romano-Christian Egyptian village context. A total of 631 segmented hair and 54 bone collagen samples were analyzed from 127 juveniles and 97 adults. Juvenile individuals (i.e., under 15 years biological age) showed …

Evaluating The Accuracy Of Stature Estimation From Tibial Radiographs Using Known And Newly Developed Regression Formulas, Atlantis Kae Baron

Graduate Student Theses, Dissertations, & Professional Papers

This study assesses the accuracy of stature estimation from tibial radiographs using digital measurements as an alternative to traditional osteometric tools. Stature estimation is crucial in forensic anthropology for identifying individuals, especially cases involving skeletal remains. Traditional methods rely on physical measurements and established regression formulas, such as those by Trotter & Gleser (1958).

This research analyzed tibial radiographs from the Forensic Anthropology Skeletal Trauma (FAST) database with ImageJ software to measure tibial lengths digitally. The sample included 59 tibiae, with measurements compared against three regression formulas; Trotter & Gleser (1958), Simon et al. (2023), and a new regression formula …

Scavenging As An Accelerant In The Postmortem Interval Estimate: Refining Quantitative Regressions For Decomposition Analyses In Southeast Nebraska, Jenna L. Alexander

Department of Anthropology: Theses and Student Research

In forensic anthropology, the postmortem interval (PMI) is an estimation of the time elapsed from the moment of death to the point of discovery or examination. Contemporary approaches for estimating PMI have sought to refine broad quantitative regressions by addressing variance among intrinsic and extrinsic influences of decomposition at a regional level. Southeast Nebraska and the broader Great Plains region encompass one of the most influential agricultural ecosystems, featuring a unique climate type and a diverse spectrum of vertebrate scavengers. While there has been minimal research addressing how the biogeoclimatic conditions of Nebraska affect predicted estimates for PMI using known …

Dental Modification Among The Classic Maya Of Chac Balam And San Juan, Ambergris Caye, Belize, Katherine Kelly

Honors Theses

Perceptions of beauty and health are embedded within everyday actions, even a simple smile. How do dental modification practices among the Classic Maya from Ambergris Caye, Belize relate to these perceptions and a person’s identity and status? This thesis analyzes the practice of notching, filing, and placing inlays in maxillary incisors and canines through a qualitative analysis of Classic period AD 250-1000 Maya teeth from the sites of San Juan and Chac Balam. A lack of patterns related to sex, socioeconomic status, and the type of modification in the dentition of five individuals, including two males, two females and one …

Social Identity And Personhood At An Early Byzantine Cemetery: Late Antique Child Burials At Syedra, Turkiye., Mekenzie Riley Davis

Electronic Theses and Dissertations

Bioarchaeological studies of children in the past have proliferated in recent years and illustrate the informational depths accessible through investigations of mortality, age, and health and disease. Alongside analyses of childhood stress and mortality, the mortuary treatment of children provides critical insight into the social structures and identity formation processes that individuals or groups are subject to in life. This thesis will investigate the intersections of childhood, gender and sex, space, and mortuary treatment as seen in a Byzantine cemetery comprised primarily of children at the site of Syedra, Türkiye through bioarchaeological and proteomic analysis. Specifically, it seeks to explore …

The Osteobiography Of Human Remains From The Seaview And Indian Town Trail Archaeological Sites, Maggie M. Klemm

Department of Anthropology: Theses and Student Research

Extensive site surveys and excavations on the Island of Barbuda led by Sophia Perdikaris have identified over 62 sites spanning from the Archaic time period to Historic times. Over the last 18 years, these multidisciplinary teams have focused on mapping all sites and performing rescue excavations on sites threatened by sea level rise, erosion or development. Two such sites are the Saladoid site of Seaview (BA016) and the Troumassoid site of Indian Town Trail (BA01). The dunes surrounding the site of Seaview receive the brunt of storms and hurricanes. In 1998 hurricane Georges exposed skeletal material now part of the …

An Investigation Of Bone Preservation As A Result Of Environmental And Cultural Variables In Mortuary Contexts, Adyn Hallahan

Honors Theses

Stable isotope analysis in bioarchaeology of human bone is generally used to reconstruct diet or migratory patterns of certain populations. Although this type of analysis is now standard practice, little research has been done regarding how cultural and mortuary practices may affect chemical composition of bone. This study aims to determine whether different simulated mortuary contexts have an effect on stable isotope levels in bone, using seven pig rib bone samples as proxy for human bone. In addition, macroscopic and microscopic observations are used to assess preservation and taphonomic processes. One of the samples served as a control, not being …

A Bioarchaeological Overview Of The Late Woodland Period Gooden Mound Group, Fulton County, Illinois, Aaron M. Durchholz

Theses and Dissertations

Extensive research in paleopathology has documented adverse effects accompanying a shift in subsistence strategy from largely nomadic, hunting and gathering lifestyles to those of more sedentary, agrarian systems. Comparative assessment of the human skeletal remains of early foragers and later farmers recovered from archaeological sites around the world have consistently demonstrated a decrease in average age at death in the latter.

Across the pre-Columbian North American Midwest, the transitional period between the Late Woodland and Mississippian periods, sometimes referred to as the terminal or Mississippian Acculturated Late Woodland, portended establishment of semi-permanent to permanent hamlets, increasingly reliant upon the adoption …

Assessment Of Forensic And Clinical Criteria Of Orbital Blowout Fractures For Use In Bioarchaeological Analysis, Dylan E. Ornot

Honors Undergraduate Theses

Orbital blowout fractures are a particular facial fracture occurring within the inner eye orbits of the face caused by blunt force trauma to the eyeball or the lower orbital rim. This fracture is common in modern clinical contexts due to physical assaults, but examining this fracture in skeletal material can also provide insights into the patterns of interpersonal violence within the fields of bioarchaeology and forensic anthropology. Issues with analyzing this fracture in skeletal material arise due to the clinical assessment practices of blowout fractures, where medical practitioners are highly focused on the soft tissue presentations of the fracture in …

Bearing Witness: Ancient Dna Analysis And The Dynamics Of Food Procurement In A Historic Missoula Chinese Community, Sarah Elizabeth Grenfell

Graduate Student Theses, Dissertations, & Professional Papers

In 2019, construction of a brewery called Cranky Sam Public House in downtown Missoula, Montana provided an unexpected opportunity to recover and preserve late nineteenth and early twentieth century archaeological evidence of a Missoula neighborhood that included a Chinese temple, a Chinese store, and dwellings with Chinese residents. The area, like many urban landscapes in the American West, also included a restricted, or red-light district. Teams of volunteer University of Montana graduate and undergraduate students conducted on-the-spot salvage archaeology monitoring and were able to recover a sample of artifacts and ecofacts from this once-bustling part of Missoula. The objectives of …

Handheld X-Ray Fluorescence (Hhxrf) As A Non-Destructive Method For Trace Element Analysis Of Ancient Maya (Pre-Conquest 800 Bc - Ad950) Teeth From Altun Ha, Belize, Griffon G. Binkowski

Honors Undergraduate Theses

In anthropology, elemental analysis of bone and teeth can provide significant details about an individual’s life history, such as diet, toxicity exposure, residency, and migration patterns. Intra-individual comparisons can help to gather information about a single individual’s life, while inter-individual comparisons can help illustrate a community’s life history during these periods. However, current methods of elemental analysis commonly involve the destruction of skeletal samples, which can damage a collection’s integrity and be perceived as disrespectful by descendant communities. Preliminary research has validated handheld x-ray fluorescence spectrometry (HHXRF) as an accurate and reliable method of analysis appropriate for determining the elemental …

Estimating The Minimum Number Of Individuals (Mni) For Skeletal Collections With Consideration To The Introduction Of Procurement Bias, M. Elizabeth Dyess, T. Heil

2023 Symposium

Of the competing methods for the estimation of the number of individuals represented within a skeletal assemblage, variations of the calculation of MNI (Minimum Number of Individuals) are most often employed. This presentation provides the preliminary results of an exhaustive study designed to determine the minimum number of individuals represented within a collection of 1,065 skeletal elements and fragments, belonging to the Eastern Washington University Anthropology Program. Results produced by established methods of computation were reinterpreted to account for the introduction of Procurement Bias in the calculation of MNI.

Compromised Health: Examining Growth And Health In A Late Antique Roman Infant And Child Cemetery, Sierra Malis

Theses and Dissertations

This research examines the relationship between growth, growth disruption, and skeletal indicators stress amongst juveniles (n=60) interred at the Late Antique infant and child cemetery at Poggio Gramignano (PG) (ca. 5th century CE), associated with a rural agricultural community. Growth disruption – evidenced by decreased long bone length compared to dental age – and stress experience – evidenced by skeletal stress indicators – were compared to those within juveniles from two urban Roman-era cemeteries (n=66), Villa Rustica (VR) (0-400 CE) and Tragurium City Necropolis (TCN) (400-700 CE). Results indicate that the PG juveniles had significantly smaller femoral lengths-for-age than VR …