Le gisement pliocène supérieur de Saint-Vallier (Drôme, France): synthèse biostratigraphique et paléoécologique

Guérin, Claude; Faure, Martine; Argant, Alain; Argant, Jacqueline; Crégut-Bonnoure, Évelyne; Débard, Evelyne; Delson, Eric; Eisenmann, Véra; Hugueney, Marguerite; Limondin-Lozouët, Nicole; Martín-Suárez, Elvira; Mein, P.; Mourer‐Chauviré, Cecile; Parenti, Fabio; Pastre, Jean‐François; Şen, Şevket; Valli, Andrea M. F.

doi:10.1016/s0016-6995(04)80023-8

Cited by 41 publications

(11 citation statements)

References 19 publications

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“…The most important localities of U. etruscus are (i) Saint‐Vallier (CCML; 24 teeth; ~2.4 Ma BP (Guérin et al . ), France), (ii) Olivola (IGF, MNHN; 17 teeth, ~1.9 Ma BP (Palombo et al . ), Italy), and (iii) Val d'Arno (IGF; 13 teeth; ~2.5 Ma BP (Napoleone et al .…”

Section: Methodsmentioning

confidence: 99%

Morphometry of upper cheek teeth of cave bears (Carnivora, Ursidae)

Baryshnikov

Puzachenko

2018

Boreas

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Univariate and multivariate statistics were applied to analyse the morphometrical variability of 4920 upper cheek teeth (P4, M1 and M2) of cave bears from 123 geographical sites (180 samples) of different Pliocene – Pleistocene ages. The analysed specimens included those belonging to the big cave bears Ursus kudarensis, U. deningeri, U. spelaeus (three subspecies) and U. kanivetz (including U. ingressus), as well as the small cave bear U. rossicus. The information‐theoretical parameters (Shannon entropy and orderliness (Von Foerster, 1960: On self‐organizing systems and their environments. In Self‐Organizing Systems, 31–50. Pergamon Press, London) were used to estimate tooth diversity in different teeth, different taxa and in selected local chrono‐populations. Multivariate allometry coefficients (Klingenberg, 1996: Multivariate allometry. In Advances in Morphometrics, 23‐49. Plenum Press, New York) were used to describe the relationships of different ‘parts’ of a tooth and to compare allometric patterns amongst species or selected local samples. A multivariate analysis showed a significant overlap of the size/shape parameter ranges in deningeroid and spelaeoid bears within morphological spaces. Within the cave bear lineage, the Deninger's bear has the greatest morphological diversity index (entropy) of all the teeth overall, and the lowest diversity is observed in the final taxon of this lineage – U. kanivetz (=ingressus). The P4 and M2 diversity showed multidirectional correlations with elevation above sea level amongst several ‘local’ populations of Late Pleistocene cave bears. The morphological disparities between the studied taxa are in close agreement with the distances in the available schemes of genetic differentiation based on ancient mitochondrial DNA. The split of U. kudarensis and U. deningeri has a good bootstrap support, which corresponds to the hypothesis about their parallel evolution. The small cave bear U. rossicus is placed between U. arctos and U. deningeri. The phylogenetic signal is more pronounced in the variability of teeth in comparison with other skeletal remains of cave bears (cranium, mandible, or metapodial bones).

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Section: Methodsmentioning

confidence: 99%

Morphometry of upper cheek teeth of cave bears (Carnivora, Ursidae)

Baryshnikov

Puzachenko

2018

Boreas

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“…It contains early Early Pleistocene taxa (e.g. Ursus etruscus or Mammuthus meridionalis ) which are also present at the French site of Saint Vallier (Guérin et al ., 2004), as well as other taxa which appear later in the Early Pleistocene, including M. whitei, H. latidens or P. brevirostris , also identified in the Italian site of Pirro Nord (Rook et al ., 2004; Palombo, 2007; Sardella et al ., 2008). According to Martínez‐Navarro et al .…”

Section: The Venta Micena Palaeontological Sitementioning

confidence: 99%

The challenge of dating early pleistocene fossil teeth by the combined uranium series–electron spin resonance method: the Venta Micena palaeontological site (Orce, Spain)

Duval

Falguères

Bahain

et al. 2011

J Quaternary Science

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The palaeontological site of Venta Micena (Orce, Andalusia, Spain) lies in the eastern sector of the Guadix-Baza basin, one of the best documented areas in Europe for Plio-Pleistocene biostratigraphy. The combination of biochronological and palaeomagnetic results, combined with the radiometric data obtained for Atapuerca Sima del Elefante, indicated that the Venta Micena stratum was formed between the Jaramillo and Olduvai palaeomagnetic events, most likely between 1.22 and 1.77 Ma. Five fossil teeth from two outcrops (sites A and B) were selected to assess the potential of combined uranium series-electron spin resonance (US-ESR) dating of Early Pleistocene sites. Although the US-ESR results of the first outcrop showed a large scatter between the three teeth, the mean age of 1.37 AE 0.24 Ma can be considered a reasonable age estimate for Venta Micena. The mean ESR age of 0.62 AE 0.03 Ma obtained for site B seems to be a severe underestimation when compared with the independent age control. This underestimation is attributed to a relative recent U-mobilization event that led to some U-leaching. The results show that any ESR age calculations of old samples are extremely sensitive to variations in the measured 230 Th/ 234 U ratios in dental tissues. Although the results demonstrate that ESR can in principle be applied to Early Pleistocene sites, they also reveal the complexity of dating such old teeth. It is necessary to continue research in several directions, such as study of the behaviour of ESR signals in old teeth and understanding recent U-mobilization processes, to improve the reliability of the combined US-ESR dating method applied to Early Pleistocene times, a period for which the number of available numerical dating techniques is very limited.

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“…The most important localities of U. etruscus are (i) Saint‐Vallier (CCML; 27 teeth; ~2.4 Ma BP (Guérin et al . ), France) and (ii) Olivola (IGF, MNHN; 15 teeth, ~1.9 Ma BP (Palombo et al . ), Italy).…”

Section: Methodsmentioning

confidence: 99%

Morphometry of lower cheek teeth of cave bears (Carnivora, Ursidae) and general remarks on the dentition variability

Baryshnikov

Puzachenko

2020

Boreas

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The variability of lower 6776 cheek teeth of spelaeoid (Ursus spelaeus, U. kanivetz, U. deningeri, U. kudarensis, U. savini and U. rossicus) and arctoid lineages (extant and extinct U. arctos) recovered from 176 palaeontological localities was analysed by methods of univariate and multivariate statistics. For comparison, teeth of U. minimus and U. etruscus species, which are ancestral taxa for cave bears and brown bear, were studied. The performed analyses indicate great variability of tooth crown in lower cheek teeth; no distinct general trend was identified in the changes, except for an increase in p4 roundness and in m3 size from U. minimus to big cave bears. Centroids of U. minimus and U. etruscus are at a great distance from those of cave bears; U. arctos occupies an intermediate position between the two groups. Molar characteristics in general are close in U. savini and U. rossicus. The bear species are differentiated in the morphospaces by morphometric variations in the lower cheek teeth but less markedly than in the morphospaces of the upper cheek teeth. A test of the inhibitory developmental cascade model showed that a linear relationship between lower molar dimensions became clear only after premolar p4 was included in the model. Evolutionary trends were found in the tooth changes with time (differently expressed in individual species and in different teeth) depending on environments, in particular on the elevation of the locality above the sea level. The allometric pattern differentiation does not always coincide with phylogenetic relationships between taxa, being most often revealed at the subspecies level. There is a dominant covariance between the upper and lower rows of teeth in accordance with the occlusion scheme. It may vary in manifestation depending on the particular species.

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Le gisement pliocène supérieur de Saint-Vallier (Drôme, France): synthèse biostratigraphique et paléoécologique

Cited by 41 publications

References 19 publications

Morphometry of upper cheek teeth of cave bears (Carnivora, Ursidae)

Morphometry of upper cheek teeth of cave bears (Carnivora, Ursidae)

The challenge of dating early pleistocene fossil teeth by the combined uranium series–electron spin resonance method: the Venta Micena palaeontological site (Orce, Spain)

Morphometry of lower cheek teeth of cave bears (Carnivora, Ursidae) and general remarks on the dentition variability

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