Search publications of the members of the Royal Belgian institute of natural Sciences
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Sint-Janshospitaal Brugge, beschrijving en interpretatie van vier bleke grafstenen. Belgische Geologische Dienst intern verslag
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Schade aan Blauwe Hardsteen in een oprit te Brustem. Studie op verzoek van Studiebureau Monumentenzorg, Tessenderlo.
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Natuursteengebruik in de Munsterkerk van Roermond. Concept v2, ‘boek 800 jaar Munsterabdij Roermond’ (coördinator Erik Caris).
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Jean Poesen
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Comparative osteological study of three species of distinct genera of Haplotilapiini (Cichlidae)
- In palaeontological and archaeozoological studies dealing with tilapia remains, identifications are usually limited to the level of the tribe Tilapiini (now called Haplotilapiini). In the present study, dry skeletons of Oreochromis niloticus (Linnaeus, 1758), Oreochromis aureus (Steindachner, 1864), Sarotherodon galilaeus (Linnaeus, 1758) and Coptodon zillii (Gervais, 1848) were analysed with the aim of defining morphological characters on a series of isolated skeletal elements. Eighteen different skeletal elements that have good chances of being well preserved (and of being recognised as tilapia) were analysed, i.e. premaxilla, dentary, maxilla, articular, lacrimal, palatine, quadrate, hyomandibula, operculum, preoperculum, posttemporal, cleithrum, supracleithrum, urohyal, vomer, and the first three precaudal vertebrae. Diagnostic criteria are described and illustrated with figures. It appears from the comparative analysis, and also from blind tests carried out afterwards, that identification is possible except for the articular and the third vertebra. More accurate identification of fossil and subfossil finds of Haplotilapiini should allow a better documentation of the zoogeographical history of these taxa in the future.
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Reconstructing Asian faunal introductions to eastern Africa from multi-proxy biomolecular and archaeological datasets
- Human-mediated biological exchange has had global social and ecological impacts. In sub- Saharan Africa, several domestic and commensal animals were introduced from Asia in the pre-modern period; however, the timing and nature of these introductions remain contentious. One model supports introduction to the eastern African coast after the mid-first millennium CE, while another posits introduction dating back to 3000 BCE. These distinct scenarios have implications for understanding the emergence of long-distance maritime connectivity, and the ecological and economic impacts of introduced species. Resolution of this longstanding debate requires new efforts, given the lack of well-dated fauna from highprecision excavations, and ambiguous osteomorphological identifications. We analysed faunal remains from 22 eastern African sites spanning a wide geographic and chronological range, and applied biomolecular techniques to confirm identifications of two Asian taxa: domestic chicken (Gallus gallus) and black rat (Rattus rattus). Our approach included ancient DNA (aDNA) analysis aided by BLAST-based bioinformatics, Zooarchaeology by Mass Spectrometry (ZooMS) collagen fingerprinting, and direct AMS (accelerator mass spectrometry) radiocarbon dating. Our results support a late, mid-first millennium CE introduction of these species. We discuss the implications of our findings for models of biological exchange, and emphasize the applicability of our approach to tropical areas with poor bone preservation.
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Exploring the potential of Lake Hamana to hold a long and reliable sedimentary record of paleotsunamis along the Nankai-Suruga Trough
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New Geological Evidence of Past Earthquakes and Tsunami Along the Nankai Trough, Japan.
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Journées annuelles 2016 : "Phylogénie, taxonomie et nomenclature", 10 et 11 septembre 2016, Saint-Sulpice-sur Risle. Compte rendu de la journée
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Geological evidence for Holocene earthquakes and tsunamis along the Nankai-Suruga Trough, Japan
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Constraining timing and origin of extreme wave events, Shirasuka Lowlands, Japan.
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Feldspar dating of historical extreme wave event deposits recorded at Shirasuka lowlands, Pacific coast of Japan.
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The potential of using feldspars to date on- and offshore recorded extreme wave event deposits
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Two new species of the genus Gergithus Stål, 1870 from Thailand and Borneo (Hemiptera: Fulgoromorpha: Issidae)
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New discoveries and reappraisal of rhinocerotids from the Middle Miocene (MN5) of the Sables de l'Orléanais (Beaugency-Tavers-Le Bardon) and Contres, France
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A new scenario for the diversification and dispersal of the earliest perissodactyls
- The first true perissodactyls (the group that includes extant horses, rhinoceroses and tapirs) appear almost simultaneously in the fossil record from the very beginning of the Eocene (56 million years ago) in Western Europe, Asia and North America. However, they already seem to belong to distinct families. This apparent diversity raises questions about the palaeobiogeographical and phylogenetic origins of these groups, which are still the subject of much debate. Indeed, the closest relative of perissodactyls is still uncertain, although two potential sister-groups now seem to be widely accepted: perissodactyls could either be closer to certain North American Phenacodontidae (Halliday et al. 2017), or rather a sister-group of Anthracobunia from the Indian subcontinent (Rose et al. 2019). The first results of the Belspo project PerissOrigin presented here is to gain a better understanding of the first dichotomies of ancient perissodactyls and their palaeobiogeographical origins. Thanks to a revision of the oldest known fossil perissodactyls, a new phylogeny has been carried out. This new phylogeny enables to define some synapomorphies of the major groups of perissodactyls and to propose a palaeobiogeographical scenario. It also shows that the earliest known perissodactyls were much more cosmopolitan than previously thought, and that some genera that were thought to be endemic from Europe were actually also found in North America and Asia. Finally, we discuss the unresolved problems in the phylogeny of Perissodactyla, notably the uncertain position of Palaeotheriidae (a group endemic to Europe) and the absence of postcranial characters in our analysis.
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Fouille de trois marchets au lieu-dit Pezîre (Rochefort), précédé de : Les marchets, phénomène famennais ?
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Méthodologie archéologique
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Présentation du matériel archéologique et éléments de chronologie
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Synthèse provisoire
