Related Experiment Video
Updated: Jul 6, 2026

06:18
Optimized Bone Sampling Protocols for the Retrieval of Ancient DNA from Archaeological Remains
Published on: November 30, 2021
Human cremation in Mexico 3,000 years ago
William N Duncan1, Andrew K Balkansky, Kimberly Crawford
1Department of Anthropology, St. John Fisher College, Rochester, NY 14618, USA. bduncan@sjfc.edu
Summary
Earliest evidence of Mixtec cremation burials, dating to the 11th century B.C., reveals this practice marked elevated social status 3,000 years ago. This finding links early archaeology with later Mixtec and Aztec mortuary customs.
Area of Science:
- Archaeology
- Mesoamerican Studies
- Bioarchaeology
Background:
- Proto-historic Mixtec codices and documentation depict nobles participating in cremation funerary rites.
- The chronological depth of this mortuary practice among the Mixtec was previously unknown.
- Formative period Mesoamerica was a time of emerging hereditary social stratification.
Observation:
- Excavations at the Tayata village site in Oaxaca, Mexico, uncovered undisturbed cremation burials.
- These burials were found in archaeological contexts dated to the eleventh century B.C.
- These findings represent the earliest known examples of cremation in the region.
Findings:
- The earliest cremation burials in Mesoamerica date to the eleventh century B.C. (3,000 years ago).
- This practice was associated with elevated social status among the early Mixtec.
- These early examples predate later uses of cremation for Mixtec kings and Aztec emperors.
Implications:
- Establishes the deep historical roots of cremation as a marker of social hierarchy in Mixtec culture.
- Connects Formative period archaeological evidence with later ethnohistorical accounts of Mixtec mortuary practices.
- Demonstrates the early emergence of social differentiation through mortuary rituals in Mesoamerica.
Related Concept Videos
Carbon Skeletons
Life on Earth is carbon-based, as all macromolecules that make up living organisms contain carbon atoms. All organic compounds have a carbon backbone. Each carbon atom is tetravalent and can bond with four other atoms, making it an extraordinarily flexible component of biological molecules. Because carbon’s valence electrons are stable, it rarely becomes an ion. As the carbon chain increases in length, structural modifications such as ring structures, double bonds, and branching side chains...
Phagocytosis of Apoptotic Cells
Cells undergoing apoptosis form apoptotic bodies that must be removed immediately to prevent inflammation, autoimmune diseases, and necrosis. Phagocytosis is carried out by professional phagocytes such as macrophages or immature dendritic cells. Non-professional phagocytes such as epithelial cells and fibroblasts also take part in this process; however, they are not as effective as professional phagocytes.
Normal cells contain receptors that prevent them from being recognized by phagocytes.
Normal cells contain receptors that prevent them from being recognized by phagocytes.
Necrosis
Necrosis is considered as an “accidental” or unexpected form of cell death that ends in cell lysis. The first noticeable mention of “necrosis” was in 1859 when Rudolf Virchow used this term to describe advanced tissue breakdown in his compilation titled “Cell Pathology”.
Morphological Manifestations of Necrosis
Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become anucleated and die, but their...
Morphological Manifestations of Necrosis
Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become anucleated and die, but their...
Diversity of Archaea IV
Hyperthermophilic archaea are a group of extremophiles thriving at temperatures above 80°C, often in hydrothermal vents and volcanic soils where conditions surpass the boiling point of water. At such temperatures, proteins, membranes, and DNA in most organisms degrade, but hyperthermophiles have evolved remarkable adaptations to maintain stability and function.Unique Cellular FeaturesHyperthermophilic membranes are composed of a monolayer of biphytanyl tetraether lipids, which resist thermal...
Autophagic Cell Death
Christian de Duve discovered “autophagy,” a process in which cellular components are engulfed by membrane-bound organelles called autophagosomes. The autophagosomes then fuse with lysosomes to digest the enclosed contents. Autophagy is generally activated in cells to prevent cell death. However, cell death is triggered when the damage is beyond repair.
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and pro-apoptotic...
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and pro-apoptotic...
In-situ Hybridization
In situ hybridization (ISH) is a technique used to detect and localize specific DNA or RNA molecules in cells, tissue, or tissue sections using a labeled probe. The technique was first used in 1969 for the investigation of nucleic acids. It is currently an essential tool in scientific research and clinical settings, especially for diagnostic purposes.
Types of probes and labels
A probe is a complementary strand of DNA or RNA that binds to corresponding nucleotide sequences in a cell. Many...
Types of probes and labels
A probe is a complementary strand of DNA or RNA that binds to corresponding nucleotide sequences in a cell. Many...

