The Gauls experienced the Roman Warm Period: Oxygen isotope study of the Gallic site of Thézy-Glimont, Picardie, France

Clauzel, Thibault; Richardin, Pascale; Ricard, Jannick; Béchennec, Yves Le; Amiot, Romain; Fourel, François; Phouybanhdyt, Brian; Vinçon‐Laugier, Arnauld; Flandrois, Jean‐Pierre; Lécuyer, Christophe

doi:10.1016/j.jasrep.2020.102595

Cited by 7 publications

(9 citation statements)

References 104 publications

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“…Some of the horses may share the same geographic origin as the humans according to the similar calculated δ 18 O mw values, although this needs further confirmation. The animals from the circular enclosure have higher δ 18 O p (+17.5 ± 0.5‰) and δ 18 O mw (À6.7 ± 1.1‰) values and are very close isotopically to the cattle studied at Thézy-Glimont (Clauzel et al, 2020). They are interpreted as local and from Picardie, which is consistent with their identification as remains from ritual celebrations after the conflict.…”

Section: Geographic Origin Of the Warriors Buried In Ribemont-sur-ancresupporting

confidence: 66%

“…Oxygen stable isotope data have been published in Clauzel et al (2020) and consist of individuals from the nearby, contemporaneous site of Thézy-Glimont, which has been dated between 350 and 200 BCE. Based on archaeological, anthropological, and isotopic observations, the analyzed humans were interpreted as local and sedentary (Clauzel et al, 2020(Clauzel et al, , 2022. Therefore, the average δ 18 O p value for these individuals of +16.1 ± 0.6‰ (δ 18 O mw = À8.4 ± 1.0‰, n = 7) is used here as the local signature for the Picardie region during the La Tène B-C1 periods.…”

Section: Geographic Origin Of the Warriors Buried In Ribemont-sur-ancrementioning

confidence: 99%

“…Humans, as omnivores with moderate water turnover, have an oxygen isotope signature mainly imprinted by the δ 18 O value of drinking water, which, during pre‐industrial times, is assumed to come from local sources derived from local meteoric waters (Darling, 2006; Daux et al, 2005). Therefore, the δ 18 O of bioapatite measured in human bone remains reflects the local meteoric water consumed during their adult life, whereas childhood can be studied using the δ 18 O of bioapatite from tooth enamel (Clauzel et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Geographic origin and social status of the Gallic warriors from Ribemont‐sur‐Ancre (France) studied through isotope systematics of bone remains

Clauzel

Richardin

Ricard

et al. 2022

Intl J of Osteoarchaeology

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Ribemont-sur-Ancre, France, is the biggest excavated human skeletal assemblage of Northern Gaul. It is interpreted as a post-battle deposit constructed to celebrate war.However, the chronology of the site, its organization and the origin of the buried warriors are still poorly understood. These problems are studied by a multi-proxy approach, based on radiocarbon dating, stable and radiogenic isotope analysis of bone remains from three structures within the site. A total of 47 human and 12 animal bone samples were analyzed for their oxygen isotope composition of bone bioapatite (δ 18 O p ), carbon and nitrogen isotope compositions of bone collagen (δ 13 C coll and δ 15 N coll ). Subsamples of 17 bone collagen and 20 bone samples were selected for radiocarbon dating and strontium isotope analysis ( 87 Sr/ 86 Sr), respectively. All samples show preservation from diagenesis, although 87 Sr/ 86 Sr contribution from the burial environment cannot be excluded. Therefore, the strontium isotope data are included in the study but are not used in the interpretation of the results. Homogeneous radiocarbon dates of human remains are observed, whereas later dates are obtained for some animal remains, highlighting the continuous use of the monument decades after the conflict. Human individuals have homogeneous δ 18 O p values, which are consistent with independent numismatic analyses and lead us to propose the Maine region as a potential geographic origin. Heterogeneities of δ 13 C coll and δ 15 N coll values are highlighted between individuals from different structures and are attributed to preferential access to animal protein and different social statuses among the buried warriors.

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Section: Geographic Origin Of the Warriors Buried In Ribemont-sur-ancresupporting

confidence: 66%

Section: Geographic Origin Of the Warriors Buried In Ribemont-sur-ancrementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Geographic origin and social status of the Gallic warriors from Ribemont‐sur‐Ancre (France) studied through isotope systematics of bone remains

Clauzel

Richardin

Ricard

et al. 2022

Intl J of Osteoarchaeology

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“…Based on these considerations, it is expected that intra-skeletal δ 18 O p variability would highlight regional heterothermies in heterotherms. A few studies have investigated the intra-skeletal δ 18 O p variability in some terrestrial and semi-aquatic extant vertebrates but the relatively reduced number of samples (n<10 per individual) of these datasets considerably limits the significance of the δ 18 O p variability (Barrick, 1998;Stoskopf et al, 2001;Vennemann et al, 2001;Missell, 2004;Coulson et al, 2008;Clauzel et al, 2020). Some palaeontological studies were focused on the search of regional heterothermies in dinosaurs (Barrick andShowers, 1994, 1995;Barrick et al, 1996Barrick et al, , 1998 but the observed variability in δ 18 O p through the skeleton was difficult to interpret without any present-day isotopic framework and concrete evidence that the isotopic method works for extant animals possessing regional heterothermies (Tomilin, 1950;Carey and Lawson, 1973;Carey, 1982).…”

Section: Introductionmentioning

confidence: 99%

Intra-skeletal variability in phosphate oxygen isotope composition reveals regional heterothermies in marine vertebrates

Séon¹,

Amiot

Suan

et al. 2022

Biogeosciences

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Abstract. Strategies used by marine vertebrates to regulate their body temperature can result in local variations, and the knowledge of these regional heterothermies is crucial for better understanding the thermophysiologies of extant and extinct organisms. In order to investigate regional heterothermies in vertebrates, we analysed the oxygen isotope composition of phosphatic skeletal elements (δ18Op) of two endothermic fishes (Thunnus thynnus and Xiphias gladius) and three dolphins (two Delphinus delphis delphis and one Cephalorhynchus commersonii kerguelensis). We observed a consistent link between δ18Op variations and temperature heterogeneities recorded by classical methods. Our δ18Op data indicate that: (i) bone hydroxylapatite of the axial skeleton of dolphins mineralise at a warmer temperature than that of the appendicular one, (ii) the skull is the warmest body region in X. gladius, and (iii) T. thynnus possesses high body temperature in the skull and visceral mass region. These results demonstrate the possibility of tracking regional heterothermies in extant marine vertebrates using the δ18Op, paving the way to direct assessment of thermophysiological specificities of both living and extinct vertebrates. From a palaeoenvironmental perspective, the significant observed δ18Op variability questions the use of some taxa or random skeletal elements for the reconstruction of palaeoceanographic parameters such as seawater temperature and δ18O.

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“…Based on these considerations, it is expected that homeothermic endotherms record homogeneous intra-skeletal δ 18 Op values, whereas in poikilothermic endotherms, intraskeletal δ 18 Op variability would highlight regional heterothermies. A few studies have investigated the intraskeletal δ 18 Op variability in some terrestrial and semi-aquatic extant organisms but the relatively reduced number of samples (n < 10 per individual) of these datasets considerably limits the significance of the δ 18 Op variability (Barrick, 1998;Stoskopf et al, 2001;Missell, 2004;Coulson et al, 2008;Clauzel et al, 2020). Some palaeontological studies were focused on the search of regional heterothermies in dinosaurs (Barrick andShowers, 1994, 1995;Barrick et al, 1996Barrick et al, , 1998 but the observed variability in δ 18 Op through the skeleton was difficult to interpret without any present-day isotopic framework and concrete evidence that the isotopic method works for extant animals possessing regional heterothermies.…”

Section: Introductionmentioning

confidence: 99%

Intraskeletal variability in phosphate oxygen isotope composition reveals regional heterothermies in marine vertebrates

Séon¹,

Amiot

Suan

et al. 2022

Preprint

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Abstract. Strategies used by marine vertebrates to regulate their body temperature can result in local variations, and the knowledge of these regional heterothermies is crucial for better understanding the thermophysiologies of extant and extinct organisms. In order to investigate regional heterothermy in vertebrates, we analysed the oxygen isotope composition of phosphatic skeletal elements (δ18Op) of two poikilothermic (Atlantic bluefin tuna and swordfish) and three homeothermic endotherms (dolphins). We observed a consistent link between δ18Op variations and temperature heterogeneities recorded by classical methods. Our δ18Op data indicate that: (i) bone hydroxyapatite of the axial skeleton of dolphins mineralize at a warmer temperature than that of the appendicular one, (ii) the skull is the warmest body region in swordfish, and (iii) Atlantic bluefin tuna possesses high body temperature in the skull and visceral mass region. These results demonstrate the possibility of tracking regional heterothermies in extant marine vertebrates using the δ18Op, paving the way to direct assessment of thermophysiological specificities of both living and extinct vertebrates. From a paleoenvironmental perspective, the significant observed δ18Op variability questions the use of some taxa or random skeletal elements for the reconstruction of paleoceanographic parameters such as seawater temperature and δ18O.

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The Gauls experienced the Roman Warm Period: Oxygen isotope study of the Gallic site of Thézy-Glimont, Picardie, France

Cited by 7 publications

References 104 publications

Geographic origin and social status of the Gallic warriors from Ribemont‐sur‐Ancre (France) studied through isotope systematics of bone remains

Geographic origin and social status of the Gallic warriors from Ribemont‐sur‐Ancre (France) studied through isotope systematics of bone remains

Intra-skeletal variability in phosphate oxygen isotope composition reveals regional heterothermies in marine vertebrates

Intraskeletal variability in phosphate oxygen isotope composition reveals regional heterothermies in marine vertebrates

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