Franck Guy
Biographic Data
| ID | 85701 |
|---|---|
| NAME | Franck Guy |
| GIVEN NAMES | Franck |
| FAMILY NAME | Guy |
| SIGNATURE | GUY F |
| AFFILIATIONS | Centre National de la Recherche Scientifique |
| ORCID | 0000-0001-7032-7963 |
| VERIFIED | Yes |
| TOTAL WORKS | 38 |
| TOTAL CITATIONS | 149 |
| AUTHOR COUNT | 38 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2002 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 7 |
Au-delà des modes uniques: Peut-on Reconstruire Les Répertoires Positionnels Des Hominines Fossiles
L’exploration du territoire comme ressource pour les adolescents placés en mecs
Uniform, circular, and shallow enamel pitting in hominins: Prevalence, morphological associations, and potential taxonomic significance
This study explores a particular form of enamel pitting originally identified in Paranthropus robustus. We call this uniform, circular, and shallow (UCS) pitting to distinguish it from more irregular and nonuniform defects often associated with enamel hypoplasia. We pose the hypothesis that UCS pitting is unique to the genus Paranthropus. We test this by investigating hominin dental remains from the ca. 3.4 Ma to ca. 1.1 Ma fossiliferous sequence…
Taxonomic assignments for the 3.4 Ma to 1.1 Ma hominin postcanine teeth from the Usno Formation and the Shungura Formation, Lower Omo Valley, Ethiopia
Sediments of the Usno Formation and the Shungura Formation date from ca. 3.75 Ma to 1.09 Ma, during which time the genus Homo appeared, Australopithecus disappeared, and the eastern African robust hominins did both. We performed an in-depth analysis of size, shape, and morphology of 108 Omo permanent postcanine dental specimens. First, we compared linear dimensions against a comparative dataset of 809 teeth from 359 specimens representing 10 homi…
Hominin diversity and occlusal pattern variations: New insights from Early Pleistocene discoveries in the Shungura Formation (Ethiopia)
Ce document a t gnr automatiquement le 17 dcembre 2025. Le texte seul est utilisable
Locomotion de Sahelanthropus, où en sommes-nous
La bipédie est l’une des adaptations clés qui définit le groupe humain. Alors que des témoignages de bipédie sont connus dès 6 Ma en Afrique de l’Est, la bipédie de Sahelanthropus tchadensis a été proposée sur la base des restes crâniens et post-crâniens. Le matériel post-crânien découvert dans la localité TM 266 de la zone fossilifère de Toros-Ménalla se compose d’un fémur gauche et de deux ulnas, droite et gauche. Nos découvertes suggèrent que …
Is femoral anteversion an osteological correlate of hominin bipedality
While extant hominoids are capable of bipedalism both in trees and on the ground, only humans exhibit skeletal adaptations for this mode of locomotion. Terrestrial bipedalism induces specific constraints on the pelvis, spine, and hindlimbs, particularly the femur. However, there is much debate about the nature of bipedalism and its terrestrial component in fossil hominins underscoring the evolutionary interest of identifying relevant osteological…
Ulnar morphology in Sahelanthropus tchadensis, what it tells us on the locomotor repertoire of the last common ancestor of humans and chimpanzees (LCA)
of the last common ancestor of humans and chimpanzees (LCA)La morphologie ulnaire chez Sahelanthropus tchadensis, ce qu'elle nous dit du rpertoire locomoteur du dernier anctre commun aux humains et aux chimpanzs (DAC)
Morphology of the Bony Labyrinth Supports the Affinities of Paradolichopithecus with the Papionina
Discoveries in recent decades indicate that the large papionin monkeys Paradolipopithecus and Procynocephalus are key members of the Late Pliocene – Early Pleistocene mammalian faunas of Eurasia. However, their taxonomical status, phylogenetic relationships, and ecological profile remain unclear. Here we investigate the two latter aspects through the study of the inner ear anatomy, as revealed by applying micro-CT scan imaging techniques on the c…
Investigating the dietary niches of fossil Plio-Pleistocene European macaques: The case of Macaca majori Azzaroli, 1946 from Sardinia
Feeding ecology of the last European colobine monkey, Dolichopithecus ruscinensis
Assessment of comminution capacity related to molar intercuspation in catarrhines using a chewing simulator
Mammalian molars play a central role during chewing, or food comminution, through cyclic dental occlusion. Mammals fragment food items with varying degrees of efficiency depending on their dental morphology, suggesting an adaptive link that is yet to be assessed. Here, we test the effect of molar morphology at maximum intercuspation (centric occlusion), i.e., between phases I and II, on the comminution of five food items that correspond to differ…
À 162 ans, les Bulletins et Mémoires de la Société d'Anthropologie s'engagent pour une science ouverte et passent en accès libre et gratuit
Version française La Société d’Anthropologie de Paris édite depuis 1859 les Bulletins et Mémoires de la Société d’Anthropologie de Paris (BMSAP). Nos bulletins sont ainsi la plus ancienne revue scientifique au monde dans le domaine de l’anthropologie biologique. Cette longévité est le résultat du soutien indéfectible de notre communauté à sa revue, que ce soit par les contributions scientifiques qui l’ont alimentée, par la fidélité de ses abonnée…
The landscape of tooth shape: Over 20 years of dental topography in primates
Diet plays an incontrovertible role in primate evolution, affecting anatomy, growth and development, behavior, and social structure. It should come as no surprise that a myriad of methods for reconstructing diet have developed, mostly utilizing the element that is not only most common in the fossil record but also most pertinent to diet: teeth. Twenty years ago, the union of traditional, anatomical analyses with emerging scanning and imaging tech…
A comparison of relief estimates used in three‐dimensional dental topography
OBJECTIVES: Topographic estimates of dental relief are now commonly used to make dietary inferences from the teeth of extant and extinct primates. We thoroughly compared commonly used relief estimates in an effort to help researchers decide which variable best suits their objectives. MATERIALS AND METHODS: We combined a total of three datasets: five theoretical models built to compare the effect of tooth complexity and basin depth on relief estim…
Morphological Variability in Paleoanthropology: New Approaches, New Issues
International audience
A window into the early evolutionary history of Cercopithecidae: Late Miocene evidence from Chad, Central Africa
Enamel Distribution in 3D: Is Enamel Thickness More Uneven in the Upper Second Molars of Durophagous Hominoids
Enamel thickness is not uniform across the dental crown of primates. It has been suggested that enamel distribution could be used in taxonomy or for ecological inferences. For instance, the thickness of molar enamel in mammals consuming hard food is expected to be uneven, despite differing reports on extant and extinct apes. Overall estimations of average and relative enamel thickness may mask the details of enamel distribution in complex teeth s…
A 2Ma old baboon-like monkey from Northern Greece and new evidence to support the Paradolichopithecus - Procynocephalus synonymy (Primates): Cercopithecidae
Investigating the dental toolkit of primates based on food mechanical properties: Feeding action does matter
Although conveying an indisputable morphological and behavioral signal, traditional dietary categories such as frugivorous or folivorous tend to group a wide range of food mechanical properties together. Because food/tooth interactions are mostly mechanical, it seems relevant to investigate the dental morphology of primates based on mechanical categories. However, existing mechanical categories classify food by its properties but cannot be used a…
La « maison » des adolescents placés en Maisons d’enfants à caractère social
Les Maisons d’enfants à caractère social sont des établissements relevant du secteur social et médico-social accueillant des mineurs placés par l’Aide sociale à l’enfance ou la Protection judiciaire de la jeunesse. Alors que le terme « maison » est présent dans le nom de ces établissements, ils ont la particularité d’être des espaces de résidence institutionnels et non familiaux. La polysémie du terme « maison » est alors utilisée par les équipes…
Was Mesopithecus a seed eating colobine? Assessment of cracking, grinding and shearing ability using dental topography
Relationship between foramen magnum position and locomotion in extant and extinct hominoids
Implications of the Relationship Between Basicranial Flexion and Facial Orientation for the Evolution of Hominid Craniofacial Structures
Integration between the face and the mandible of Pongo and the evolution of the craniofacial morphology of orangutans
OBJECTIVES: Extant Pongo diverges from other hominids by a series of craniofacial morphological features, such as a concave face, a reduced supraorbital torus, or an upwardly orientated palate. These traits are not independent because the skull is a complex integrated structure. The aim of this study is to describe the relationship between the face and mandible of Pongo, in order to examine the link between mandibular structures and the set-up of…
Symphyseal shape variation in extant and fossil hominoids, and the symphysis of Australopithecus bahrelghazali
New approaches in hominoid taxonomy: Morphometrics
We report here on new cranial data relevant to hominoid taxonomic analyses, based on a study of 438 skulls belonging to 13 nonhuman living hominoid taxa. Nineteen landmarks were selected to describe the overall shape of the maxillofacial complex, in order to investigate its discriminative power in taxonomic analyses. We used a geometric morphometrics approach to depict morphological variation from the genus down to the subspecific level, and we e…
Talar morphology, phylogenetic affinities, and locomotor adaptation of a large‐bodied amphipithecid primate from the late middle eocene of Myanmar
A well‐preserved fossil talus [National Museum of Myanmar Primates (NMMP) 82] of a large‐bodied primate is described from the late middle Eocene Pondaung Formation of central Myanmar. The specimen was collected at Thandaung Kyitchaung, a well‐known amphipithecid primate–bearing locality near the village of Mogaung. NMMP 82 adds to a meager but growing sample of postcranial remains documenting the large‐bodied primates of the Pondaung Formation. T…
Was Mesopithecus a seed eating colobine? Assessment of cracking, grinding and shearing ability using dental topography
Variations of the mandibular shape in extant hominoids: Generic, specific, and subspecific quantification using elliptical fourier analysis in lateral view
While a number of studies have documented the mandibular variations in hominoids, few focused on evaluating the variation of the whole outline of this structure. Using an efficient morphometrical approach, i.e. elliptical Fourier analysis, mandibular outlines in lateral view from 578 adult hominoids representing the genera Hylobates , Pongo , Gorilla , Pan , and Homo were quantified and compared. This study confirms that elliptical Fourier analys…
Assessing endocranial variations in great apes and humans using 3D data from virtual endocasts
Modern humans are characterized by their large, complex, and specialized brain. Human brain evolution can be addressed through direct evidence provided by fossil hominid endocasts (i.e. paleoneurology), or through indirect evidence of extant species comparative neurology. Here we use the second approach, providing an extant comparative framework for hominid paleoneurological studies. We explore endocranial size and shape differences among great a…
Three-dimensional analysis of mandibular dental root morphology in hominoids
The landscape of tooth shape: Over 20 years of dental topography in primates
Diet plays an incontrovertible role in primate evolution, affecting anatomy, growth and development, behavior, and social structure. It should come as no surprise that a myriad of methods for reconstructing diet have developed, mostly utilizing the element that is not only most common in the fossil record but also most pertinent to diet: teeth. Twenty years ago, the union of traditional, anatomical analyses with emerging scanning and imaging tech…
A 2Ma old baboon-like monkey from Northern Greece and new evidence to support the Paradolichopithecus - Procynocephalus synonymy (Primates): Cercopithecidae
Quantitative three-dimensional topography in taxonomy applied to the dental morphology of catarrhines
This paper presents a new aspect in studies of dental morphology based exclusively on 3D topographical analysis. Our method was applied to a set of 20 unworn upper second molars belonging to seven extant catarrhine genera. From a geometrical analysis of the polygonal grid representing the shape of each tooth, we propose a 3D dataset that provides a detailed characterization of the enamel morphology. In this article, we present a taxonomic applica…
Enamel Distribution in 3D: Is Enamel Thickness More Uneven in the Upper Second Molars of Durophagous Hominoids
Enamel thickness is not uniform across the dental crown of primates. It has been suggested that enamel distribution could be used in taxonomy or for ecological inferences. For instance, the thickness of molar enamel in mammals consuming hard food is expected to be uneven, despite differing reports on extant and extinct apes. Overall estimations of average and relative enamel thickness may mask the details of enamel distribution in complex teeth s…
Integration between the face and the mandible of Pongo and the evolution of the craniofacial morphology of orangutans
OBJECTIVES: Extant Pongo diverges from other hominids by a series of craniofacial morphological features, such as a concave face, a reduced supraorbital torus, or an upwardly orientated palate. These traits are not independent because the skull is a complex integrated structure. The aim of this study is to describe the relationship between the face and mandible of Pongo, in order to examine the link between mandibular structures and the set-up of…
Feeding ecology of the last European colobine monkey, Dolichopithecus ruscinensis
A window into the early evolutionary history of Cercopithecidae: Late Miocene evidence from Chad, Central Africa
A comparison of relief estimates used in three‐dimensional dental topography
OBJECTIVES: Topographic estimates of dental relief are now commonly used to make dietary inferences from the teeth of extant and extinct primates. We thoroughly compared commonly used relief estimates in an effort to help researchers decide which variable best suits their objectives. MATERIALS AND METHODS: We combined a total of three datasets: five theoretical models built to compare the effect of tooth complexity and basin depth on relief estim…
Relationship between foramen magnum position and locomotion in extant and extinct hominoids
Implications of the Relationship Between Basicranial Flexion and Facial Orientation for the Evolution of Hominid Craniofacial Structures
A Middle Pleistocene fossil hominin maxilla from the Republic of Djibouti (East Africa)
The HRD1 hominin maxilla was discovered during fieldwork carried out in the Republic of Djibouti, eastern Africa, in the 1980s. The HRD1 specimen is attributed to the genus Homo and has been dated from the Early to the Middle Pleistocene. This paper presents a detailed morphological and quantitative description of the HRD1 maxilla. The morphology of the dental roots, the enamel thickness, the morphological architecture of the premaxillary–maxilla…
Taxonomic assignments for the 3.4 Ma to 1.1 Ma hominin postcanine teeth from the Usno Formation and the Shungura Formation, Lower Omo Valley, Ethiopia
Sediments of the Usno Formation and the Shungura Formation date from ca. 3.75 Ma to 1.09 Ma, during which time the genus Homo appeared, Australopithecus disappeared, and the eastern African robust hominins did both. We performed an in-depth analysis of size, shape, and morphology of 108 Omo permanent postcanine dental specimens. First, we compared linear dimensions against a comparative dataset of 809 teeth from 359 specimens representing 10 homi…
Assessment of comminution capacity related to molar intercuspation in catarrhines using a chewing simulator
Mammalian molars play a central role during chewing, or food comminution, through cyclic dental occlusion. Mammals fragment food items with varying degrees of efficiency depending on their dental morphology, suggesting an adaptive link that is yet to be assessed. Here, we test the effect of molar morphology at maximum intercuspation (centric occlusion), i.e., between phases I and II, on the comminution of five food items that correspond to differ…
Geology and palaeontology of the Upper Miocene Toros-Menalla hominid locality, Chad
A new hominid from the Upper Miocene of Chad, Central Africa
New approaches in hominoid taxonomy: Morphometrics
We report here on new cranial data relevant to hominoid taxonomic analyses, based on a study of 438 skulls belonging to 13 nonhuman living hominoid taxa. Nineteen landmarks were selected to describe the overall shape of the maxillofacial complex, in order to investigate its discriminative power in taxonomic analyses. We used a geometric morphometrics approach to depict morphological variation from the genus down to the subspecific level, and we e…
Virtual cranial reconstruction of Sahelanthropus tchadensis
Variations of the mandibular shape in extant hominoids: Generic, specific, and subspecific quantification using elliptical fourier analysis in lateral view
While a number of studies have documented the mandibular variations in hominoids, few focused on evaluating the variation of the whole outline of this structure. Using an efficient morphometrical approach, i.e. elliptical Fourier analysis, mandibular outlines in lateral view from 578 adult hominoids representing the genera Hylobates , Pongo , Gorilla , Pan , and Homo were quantified and compared. This study confirms that elliptical Fourier analys…
Symphyseal shape variation in extant and fossil hominoids, and the symphysis of Australopithecus bahrelghazali
Talar morphology, phylogenetic affinities, and locomotor adaptation of a large‐bodied amphipithecid primate from the late middle eocene of Myanmar
A well‐preserved fossil talus [National Museum of Myanmar Primates (NMMP) 82] of a large‐bodied primate is described from the late middle Eocene Pondaung Formation of central Myanmar. The specimen was collected at Thandaung Kyitchaung, a well‐known amphipithecid primate–bearing locality near the village of Mogaung. NMMP 82 adds to a meager but growing sample of postcranial remains documenting the large‐bodied primates of the Pondaung Formation. T…
Assessing endocranial variations in great apes and humans using 3D data from virtual endocasts
Modern humans are characterized by their large, complex, and specialized brain. Human brain evolution can be addressed through direct evidence provided by fossil hominid endocasts (i.e. paleoneurology), or through indirect evidence of extant species comparative neurology. Here we use the second approach, providing an extant comparative framework for hominid paleoneurological studies. We explore endocranial size and shape differences among great a…
Three-dimensional analysis of mandibular dental root morphology in hominoids
Mobilité et immobilité dans le cadre du placement des adolescents, des usages de l'espace en tension
L'hébergement et la prise en charge d'un enfant ou d'un adolescent hors de son domicile familial, dans le cadre d'une mesure de placement, implique avant tout un déplacement dans l'espace. L'étude des modalités et effets de ce déplacement (à moyen et long termes) a donné lieu à plusieurs travaux sur les parcours de placement et les itinéraires des individus au sein du dispositif de prise en charge. Les « parcours de placement » analysés par Émili…
« J’habite… enfin…, je me comprends »: L’appropriation territoriale des adolescents placés en question
Le rapport à l’espace des adolescents, et plus particulièrement leur mobilité, est souvent appréhendé à travers le prisme de la famille et d’un lieu de résidence unique. Pourtant, certains individus vivent dès l’adolescence des situations de multirésidentialité, en lien notamment avec une prise en charge fondée sur le déplacement géographique. L’analyse des situations résidentielles des enfants placés montre une diversité de configurations, impli…
Quantitative three-dimensional topography in taxonomy applied to the dental morphology of catarrhines
This paper presents a new aspect in studies of dental morphology based exclusively on 3D topographical analysis. Our method was applied to a set of 20 unworn upper second molars belonging to seven extant catarrhine genera. From a geometrical analysis of the polygonal grid representing the shape of each tooth, we propose a 3D dataset that provides a detailed characterization of the enamel morphology. In this article, we present a taxonomic applica…
Implications of the Relationship Between Basicranial Flexion and Facial Orientation for the Evolution of Hominid Craniofacial Structures
Integration between the face and the mandible of Pongo and the evolution of the craniofacial morphology of orangutans
OBJECTIVES: Extant Pongo diverges from other hominids by a series of craniofacial morphological features, such as a concave face, a reduced supraorbital torus, or an upwardly orientated palate. These traits are not independent because the skull is a complex integrated structure. The aim of this study is to describe the relationship between the face and mandible of Pongo, in order to examine the link between mandibular structures and the set-up of…
A Middle Pleistocene fossil hominin maxilla from the Republic of Djibouti (East Africa)
The HRD1 hominin maxilla was discovered during fieldwork carried out in the Republic of Djibouti, eastern Africa, in the 1980s. The HRD1 specimen is attributed to the genus Homo and has been dated from the Early to the Middle Pleistocene. This paper presents a detailed morphological and quantitative description of the HRD1 maxilla. The morphology of the dental roots, the enamel thickness, the morphological architecture of the premaxillary–maxilla…
Investigating the dental toolkit of primates based on food mechanical properties: Feeding action does matter
Although conveying an indisputable morphological and behavioral signal, traditional dietary categories such as frugivorous or folivorous tend to group a wide range of food mechanical properties together. Because food/tooth interactions are mostly mechanical, it seems relevant to investigate the dental morphology of primates based on mechanical categories. However, existing mechanical categories classify food by its properties but cannot be used a…
La « maison » des adolescents placés en Maisons d’enfants à caractère social
Les Maisons d’enfants à caractère social sont des établissements relevant du secteur social et médico-social accueillant des mineurs placés par l’Aide sociale à l’enfance ou la Protection judiciaire de la jeunesse. Alors que le terme « maison » est présent dans le nom de ces établissements, ils ont la particularité d’être des espaces de résidence institutionnels et non familiaux. La polysémie du terme « maison » est alors utilisée par les équipes…
Was Mesopithecus a seed eating colobine? Assessment of cracking, grinding and shearing ability using dental topography
Relationship between foramen magnum position and locomotion in extant and extinct hominoids
A 2Ma old baboon-like monkey from Northern Greece and new evidence to support the Paradolichopithecus - Procynocephalus synonymy (Primates): Cercopithecidae
A comparison of relief estimates used in three‐dimensional dental topography
OBJECTIVES: Topographic estimates of dental relief are now commonly used to make dietary inferences from the teeth of extant and extinct primates. We thoroughly compared commonly used relief estimates in an effort to help researchers decide which variable best suits their objectives. MATERIALS AND METHODS: We combined a total of three datasets: five theoretical models built to compare the effect of tooth complexity and basin depth on relief estim…
Morphological Variability in Paleoanthropology: New Approaches, New Issues
International audience
A window into the early evolutionary history of Cercopithecidae: Late Miocene evidence from Chad, Central Africa
Enamel Distribution in 3D: Is Enamel Thickness More Uneven in the Upper Second Molars of Durophagous Hominoids
Enamel thickness is not uniform across the dental crown of primates. It has been suggested that enamel distribution could be used in taxonomy or for ecological inferences. For instance, the thickness of molar enamel in mammals consuming hard food is expected to be uneven, despite differing reports on extant and extinct apes. Overall estimations of average and relative enamel thickness may mask the details of enamel distribution in complex teeth s…
The landscape of tooth shape: Over 20 years of dental topography in primates
Diet plays an incontrovertible role in primate evolution, affecting anatomy, growth and development, behavior, and social structure. It should come as no surprise that a myriad of methods for reconstructing diet have developed, mostly utilizing the element that is not only most common in the fossil record but also most pertinent to diet: teeth. Twenty years ago, the union of traditional, anatomical analyses with emerging scanning and imaging tech…
Biology (30 works) · Evolutionary biology (24 works) · Primate Behavior and Ecology (22 works) · Paleontology (21 works) · Zoology (21 works) · Paleontology (20 works) · Evolution and Paleontology Studies (18 works) · Pleistocene-Era Hominins and Archaeology (18 works) · Extant taxon (14 works) · Geography (14 works)