Richard Thomas

Dr. Richard Thomas

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Research Focus & Metrics

Academic Career Length

35Years (1992-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 March 2015 in International Journal of Paleopathology
Verified
Journal Article
Closed access
JAJo Appleby
Jo Appleby
RTRichard Thomas
Richard Thomas
JBJane Buikstra
Jane Buikstra

6 June 2024 in Nature
Verified
Journal Article
Open access
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Pablo LibradoPablo Librado
Pablo Librado
GTGaetan Tressières
Gaetan Tressières
LCLorelei Chauvey
Lorelei Chauvey
AFAntoine Fages
Antoine Fages
NKNaveed Khan
Naveed Khan
LOLudovic Orlando
Ludovic Orlando
Horses revolutionized human history with fast mobility1. However, the timeline between their domestication and their widespread integration as a means of transport remains contentious2–4. Here we assemble a collection of 475 ancient horse genomes to assess the period when these animals were first reshaped by human agency in Eurasia. We find that reproductive control of the modern domestic lineage emerged around 2200 bce, through close-kin mating and shortened generation times. Reproductive control emerged following a severe domestication bottleneck starting no earlier than approximately 2700 bce, and coincided with a sudden expansion across Eurasia that ultimately resulted in the replacement of nearly every local horse lineage. This expansion marked the rise of widespread horse-based mobility in human history, which refutes the commonly held narrative of large horse herds accompanying the massive migration of steppe peoples across Europe around 3000 bce and earlier3,5. Finally, we detect significantly shortened generation times at Botai around 3500 bce, a settlement from central Asia associated with corrals and a subsistence economy centred on horses6,7. This supports local horse husbandry before the rise of modern domestic bloodlines.

25 March 2020 in European Journal of Archaeology
Verified
Journal Article
Open access
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HHHelena Hamerow
Helena Hamerow
ABAmy Bogaard
Amy Bogaard
MCMichael Charles
Michael Charles
EFEmily Forster
Emily Forster
MHMatilda Holmes
Matilda Holmes
RTRichard Thomas
Richard Thomas
In much of Europe, the advent of low-input cereal farming regimes betweenc.ad800 and 1200 enabled landowners—lords—to amass wealth by greatly expanding the amount of land under cultivation and exploiting the labour of others. Scientific analysis of plant remains and animal bones from archaeological contexts is generating the first direct evidence for the development of such low-input regimes. This article outlines the methods used by the FeedSax project to resolve key questions regarding the ‘cerealization’ of the medieval countryside and presents preliminary results using the town of Stafford as a worked example. These indicate an increase in the scale of cultivation in the Mid-Saxon period, while the Late Saxon period saw a shift to a low-input cultivation regime and probably an expansion onto heavier soils. Crop rotation appears to have been practised from at least the mid-tenth century.

1 June 2005 in International Journal of Historical Archaeology
Verified
Journal Article
Closed access
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RTRichard Thomas
Richard Thomas

1 April 2014 in Journal of Archaeological Science
Verified
Journal Article
Closed access
LLLluís Lloveras
Lluís Lloveras
JNJordi Nadal
Jordi Nadal
MMMarta Moreno-García
Marta Moreno-García
RTRichard Thomas
Richard Thomas
JAJaume Anglada
Jaume Anglada
DVDavid Vilasís
David Vilasís

1 June 2021 in International Journal of Paleopathology
Verified
Journal Article
Open access
MHMatilda Holmes
Matilda Holmes
RTRichard Thomas
Richard Thomas
HHHelena Hamerow
Helena Hamerow
To provide a comparative baseline for future studies of oral pathology in domestic livestock and to better understand connections between lesion prevalence and biological context in past animal populations. Over 1600 sheep and cattle mandibles recovered from archaeological sites in England between 500 and 1300 CE. A comprehensive investigation of periodontal disease was conducted based on four characteristics: dental calculus; periosteal new bone formation; alveolar recession; and ante-mortem tooth loss. The anatomical position and severity of these lesions were quantified and correlated against the age of each individual. Two types of periosteal new bone formation were recognized: one in the growing mandibles of young animals, the other in older animals and associated with disease. The incidence of calculus and alveolar recession increase with age. Correlations exist between calculus, alveolar recession and periosteal new bone formation. Disruption caused by the eruption of the P4 is also implied as a contributory factor to the onset of periodontal disease. When interpreting periodontal disease in zooarchaeological collections it is vital to consider the effect of age as well as environmental and genetic factors. This is the first comprehensive zooarchaeological study to investigate the effect of age on periodontal disease. It provides a better understanding of the frequency and presentation of periodontal disease as a baseline for future studies. Cattle mandibles are under-represented due to poor survival. Ideally, radiographs of mandibles with ante-mortem tooth loss would be taken, but this was not possible. The role of genetic factors, diet and environment needs to be better understood.