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Jean-Jacques Hublin

Publications and source records attributed to Jean-Jacques Hublin.

4 recordsLinked to original sources

Denisovans from southwestern China and their subsistence strategies.

Growing fossil and genomic evidence has substantially advanced our understanding of Denisovans' evolutionary history1-9, yet their technological behaviours and subsistence strategies remain poorly documented. Here we present a comprehensive analysis of hominin fossils and associated archaeological remains from Bianfu Cave, Yunnan Province, southwestern China. The hominin fossils are dated to about 167-134 thousand years ago (ka), whereas the cultural sequence spanned from about 190 ka to 70 ka, representing one of the longest cultural records most parsimoniously attributed to Denisovans-identified through enamel-dentine junction morphology and palaeoproteomic analyses10. The new fossils include four teeth that expand the known dental variation of this group, two cranial fragments and a radius. Faunal and pollen records indicate a conifer-dominated forest or forest-steppe environment across Marine Isotope Stages 6 to 4. The inhabitants of Bianfu Cave practised specialized hunting of medium- to large-bodied prey and used a technological strategy characterized by expedient core reduction and tool production, alongside pervasive use of unmodified bones. This pattern suggests an adaptive system prioritizing the exploitation of object affordance over intensive tool manufacture. Bianfu Cave provides unprecedented insights into Denisovan biology, behaviour and ecology in eastern Asia and points to a substantial genetic and cultural legacy in later populations in Southeast Asia and Oceania.

Journal Article↗

Neandertals.

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Animals↗

Dental remains from the Grotte du Renne at Arcy-sur-Cure (Yonne).

Human remains associated with the earliest Upper Paleolithic industries are sparse. What is preserved is often fragmentary, making it difficult to accurately assign them to a particular species. For some time it has been generally accepted that Neandertals were responsible for the Châtelperronian and anatomically modern humans for the early Aurignacian industries. However, the recent re-dating of several of the more-complete modern human fossils associated with the early Aurignacian (e.g., Vogelherd) has led some to question the identity of the makers and the context of these early Upper Paleolithic industries. The Grotte du Renne at Arcy-sur-Cure, France has yielded many hominin remains, from Mousterian, Châtelperronian, Aurignacian, and Gravettian layers. Previously, a child's temporal bone from the Châtelperronian Layer Xb was recognized as belonging to a Neandertal; however, most of the teeth from Châtelperronian layers VIII-X remain unpublished. We describe the dental remains from the Châtelperronian layers, place them in a comparative (Mousterian Neandertal and Upper Paleolithic modern human) context, and evaluate their taxonomic status. The teeth (n = 29) represent a minimum of six individuals aged from birth to adult. The permanent dental sample (n = 15) from the Châtelperronian layers of Arcy-sur-Cure exhibits traits (e.g., lower molar mid-trigonid crest) that occur more frequently in Neandertals than in Upper Paleolithic modern humans. Furthermore, several teeth show trait combinations, including Cusp 6/mid-trigonid crest/anterior fovea in the lower second molar, that are rare or absent in Upper Paleolithic modern humans. The deciduous teeth (n = 14) significantly increase the sample of known deciduous hominin teeth and are more similar to Mousterian Neandertals from Europe and Asia than to Upper Paleolithic modern humans. Thus, the preponderance of dental evidence from the Grotte du Renne strongly supports that Neandertals were responsible for the Châtelperronian industry at Arcy-sur-Cure.

Age Determination by Teeth↗

The bony labyrinth of Neanderthals.

This paper presents a comprehensive comparative analysis of the Neanderthal bony labyrinth, a structure located inside the petrous temporal bone. Fifteen Neanderthal specimens are compared with a Holocene human sample, as well as with a small number of European Middle Pleistocene hominins, and early anatomically modern and European Upper Palaeolithic humans. Compared with Holocene humans the bony labyrinth of Neanderthals can be characterized by an anterior semicircular canal arc which is smaller in absolute and relative size, is relatively narrow, and shows more torsion. The posterior semicircular canal arc is smaller in absolute and relative size as well, it is more circular in shape, and is positioned more inferiorly relative to the lateral canal plane. The lateral semicircular canal arc is absolutely and relatively larger. Finally, the Neanderthal ampullar line is more vertically inclined relative to the planar orientation of the lateral canal. The European Upper Palaeolithic and early modern humans are most similar, although not fully identical to Holocene humans in labyrinthine morphology. The European Middle Pleistocene hominins show the typical semicircular canal morphology of Neanderthals, with the exception of the arc shape and inferiorly position of the posterior canal and the strongly inclined ampullar line. The marked difference between the labyrinths of Neanderthals and modern humans can be used to assess the phylogenetic affinities of fragmentary temporal bone fossils. However, this application is limited by a degree of overlap between the morphologies. The typical shape of the Neanderthal labyrinth appears to mirror aspects of the surrounding petrous pyramid, and both may follow from the phylogenetic impact of Neanderthal brain morphology moulding the shape of the posterior cranial fossa. The functionally important arc sizes of the Neanderthal semicircular canals may reflect a pattern of head movements different from that of modern humans, possibly related to aspects of locomotor behaviour and the kinematic properties of their head and neck.

Adult↗