Iron Age horse study traces workload stress at Casas del Turuñuelo
Bottom line
A new paper in Animals examines 31 equids from the 5th-century BCE ritual deposit at Casas del Turuñuelo in Badajoz, Spain, and argues that these protohistoric horses show a notable burden of skeletal and dental pathology linked to management, workload, and biomechanical stress. The study adds clinical detail to an already unusual archaeological assemblage from the Tartessian site, where earlier work documented a large-scale animal sacrifice dominated by horses. Prior analyses of the same deposit found frequent second premolar wear consistent with bit use, mandibular periostosis in some animals, and vertebral and limb lesions suggesting riding or traction work before death. (journalsworld.com)
Why it matters: For veterinary professionals, the paper is a reminder that equine musculoskeletal overload, oral trauma associated with tack, and signs of early work-related stress have deep historical roots. The Casas del Turuñuelo horses appear to offer a rare long-view case study in how management decisions, age at first use, and human handling can leave durable lesions in the axial skeleton, appendicular skeleton, and dentition. That makes the assemblage relevant beyond archaeology, especially for clinicians and researchers interested in welfare, workload, lameness, dental disease, and the interpretation of chronic stress markers across populations. (researchgate.net)
What to watch: Watch for follow-on work that links these pathology findings with newer isotopic and site studies, which are beginning to map where the animals came from, how they were managed, and how this exceptional sacrificial event fit into wider Tartessian horse use. (sciencedirect.com)
Key facts
- Study type
- New paper in Animals
- Site
- Casas del Turuñuelo, Badajoz, Spain
- Date published
- September 28, 2026
- Sample size
- 31 equids
- Time period
- 5th-century BCE
- Main finding
- Notable skeletal and dental pathology linked to management, workload, and biomechanical stress
- Earlier deposit description
- More than 60 sacrificed animals, especially horses
- Prior lesion pattern
- Second premolar wear, mandibular periostosis, vertebral and limb lesions, and osteoarthritis
A newly published Animals study brings a veterinary lens to one of Europe’s most unusual equine assemblages: the horses of Casas del Turuñuelo, a 5th-century BCE Tartessian site in southwestern Spain. The paper, published September 28, 2026, analyzes pathologies in 31 equids from the ritual deposit and frames them as evidence of health strain, management practices, and biomechanical stress in protohistoric horses. (journalsworld.com)
The site itself has drawn sustained attention for years. Casas del Turuñuelo was formally protected in Spain as an archaeological zone, and official descriptions highlight a courtyard deposit containing more than 60 sacrificed animals, especially horses, many placed in anatomical connection and some still wearing iron bits. A 2023 PLOS ONE study described the deposit as a unique Iron Age mass sacrifice and established that the assemblage was not the result of natural mortality or an epidemic event. (boe.es)
That earlier work also laid much of the clinical groundwork now being expanded. Researchers reported that wear on the second premolar was the most common equine lesion identified, present in 23 of 40 animals assessed for that feature, matching the position of metal bits. They also found mandibular periostosis in 12 of 40 cases, thoracic vertebral lesions in 22 of 32 animals, metacarpal or metatarsal lesions in 11 of 33, and osteoarthritis in roughly 30% of horses examined. The authors interpreted that pattern as consistent with riding and possibly cart-pulling work. (construyendotarteso.com)
Additional background from a 2023 veterinary summary of the site sharpened that interpretation further. That report said many of the equids were slaughtered between 4 and 7 years of age, with only a small number older than 7, yet even the youngest animals already showed functional bone pathologies associated with saddle use, traction, and dental wear from bits. It also noted a high frequency of enamel hypoplasia in the premolar and molar series, raising the possibility of nutritional deficits, febrile disease, or congenital disturbance during development. (researchgate.net)
Direct outside expert reaction to the new Animals paper appears limited so far, but the broader research community has been steadily building out the story of these horses. A 2026 isotopic study from the same site reported diverse geographic origins and complex mobility patterns among the equids, suggesting that the sacrificial group was not a simple, uniform local herd. That matters because it broadens the interpretation of pathology: lesions may reflect not just work intensity, but also transport, sourcing networks, and differing early-life management histories before the animals ever reached the site. This is an inference from the combined pathology and isotope literature, rather than a direct claim from one paper alone. (sciencedirect.com)
Why it matters: For veterinary professionals, the value here isn’t that Iron Age horses faced the same clinical environment as modern sport or working horses. It’s that the study offers a rare population-level record of how repeated mechanical load, tack-related oral trauma, developmental stress, and human management can accumulate in the equine body. In practical terms, it reinforces familiar themes: the importance of age-appropriate training, attention to bit fit and oral injury, recognition of axial skeleton stress, and the long-term consequences of using young horses for demanding work. (construyendotarteso.com)
The paper also sits at the intersection of veterinary medicine, welfare science, and archaeology. Because the animals were deposited in an unusual ritual context and preserved in large numbers, the assemblage lets researchers examine herd-level patterns that are often invisible in isolated clinical cases. For clinicians and equine researchers, that makes Casas del Turuñuelo less a historical curiosity than a long-horizon stress archive, one that can inform how we think about chronic workload markers and management-related lesions over time. (journals.plos.org)
What to watch: The next step will likely be tighter integration of pathology, isotopic provenance, age-at-death, and contextual archaeological data to clarify whether specific lesions track with sex, origin, work role, or sacrificial phase. If that synthesis emerges, it could turn Casas del Turuñuelo into one of the clearest ancient case studies yet for reconstructing equine management and welfare at the population level. (sciencedirect.com)