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Inproceedings Reference Bringing the geology of the natural building stone to the public Linking the "3D Gent" project and the EuroGeoSource portal
Located in Library / RBINS Staff Publications
Article Reference On the genus Halirages (Crustacea, Amphipoda), with the description of two new species from Scandinavia and Arctic Europe
A new common deep-sea species of Halirages Boeck, 1871 closely related to H. qvadridentatus G.O. Sars, 1877, H. cainae sp. nov., is described after specimens collected in the Norwegian Sea during the MAREANO 2009-111 cruise. Examination of the syntypes of H. elegans Norman, 1882 demonstrates that Norman's species is a junior synonym of H. qvadridentatus G.O. Sars, 1877 and that the species usually named H. elegans in literature was actually undescribed. The name H. stappersi sp. nov. is proposed for that species. A key to and a checklist of Halirages species is given.
Located in Library / RBINS Staff Publications
Article Reference The stratigraphic position of the Cambrian Jodoigne Formation redefined (Brabant Massif, Belgium)
Located in Library / RBINS Staff Publications
Inproceedings Reference Palaeozoic subcrop map of the Brabant Massif in Flanders, Belgium
Located in Library / RBINS Staff Publications
Article Reference Evaluatieonderzoek van een steentijd- en vroege bronstijdsite in Mechelen-Zennegat (Antwerpen, B)
Located in Library / RBINS Staff Publications
Article Reference Dierenresten uit een vroege Swifterbank-nederzetting te Doel-Deurganckdok (Vlaanderen, België): jachtwild, maar vooral veel vis
Located in Library / RBINS Staff Publications
Article Reference Diacodexis gigasei n. sp., le plus ancien Artiodactyle (Mammalia) belge, proche de la limite Paléocène-Eocène
Les données acquises au cours de fouilles récentes ainsi que la mise en commun du matériel de plusieurs collections du gisement de Dormaal (localitt de référence du Niveau-Repère MP 7) ont permis de rassembler une douzaine de dents jugales de Diacodrxis. L'étude de ce matériel et sa comparaison avec diverses espèces primitives de Diacodrxis de I'Eocène inftrieur d'Europe, d'Amtrique du Nord et d'Asie ont permis de définir la nouvelle espèce, Diacodexis gigasri. Une position phylogénttique est proposée pour cette nouvelle espèce.
Located in Library / RBINS Staff Publications
Article Reference Macrocranion germonprae n. sp., insectivore proche de la limite Paléocène-Eocène en Belgique
La nouvelle espèce Macrocranion germonpreae du Membre de Dormaal (Groupe de Landen, Belgique) est décrite sur la base de dents jugales isolées. Cet insectivore érinacéomorphe est comparé aux autres espèces du genre Macrocranion d'Europe et d'AmCrique du Nord. M. germonpreae possède les caractères morphologiques d'un Dormaaliinae primitif.
Located in Library / RBINS Staff Publications
Article Reference A new species of Kriptobaatar (Multituberculata): the first Late Cretaceous mammal from Inner Mongolia (P.R. China)
Multituberculates are the best represented mammals of the Late Cretaceous in Asia and most of them are from Outer Mongolia. The djadochtatherioidean multituberculate Kr)ptobaut~im- andihuensis n. sp. is described on the basis of two skulls froin the Upper Cretaccous localiiy of Bayan Mandaliu (Inner Mongolia, People's Republic of China). The main characters that differentiate it from tlie type species K. dashzevegi Kielan-Jaworowska, 1970 are: the base of the zygomatic arch situated at the level of tlie anterior root of the P4 and the narrow anterior extent of the orbit, the "V" shape of the palatoinaxillary suture between the tlvo major palatine fonmina, the high and thick part of the dentary under the mandibular diastema. the long and low part of the dentary iinder the mandibular notch, the anteroposteriorly short coronoid process. the presence of 5 cusps on the middle row of Ml and on the labial row of ml, the long p4. the Iiigh ratio p4:ml length, and the robust il. The presence of this species in lnner Mongolia extends the palacogeographical distribution area of the djadochtatherioideans to the soutliern part of the Gobi Basin. Neveiiheless, morphological differences between K. tnandahitensis from lnner Mongolia and K. dushzevegi from Outer Mongolia suggest a palaeogeographical isolation within the Djadochtatherioidea group during the Campanian.
Located in Library / RBINS Staff Publications
Article Reference Differentiation between two salt marsh beetle ecotypes: Evidence for ongoing speciation
The plausibility of trait divergence under divergent natural selection in the presence of gene flow in natural populations is a contentious issue in evolutionary research. Its importance lies in the fact that this process is thought to be one of the key triggers in ecological speciation in which a species splits into ecologically distinct forms when separate niches are occupied. in this study we demonstrate strong genetic divergence at the IDH1 locus between pond- and canal-inhabiting individuals of the salt marsh beetle Pogonus chalceus from the Guerande salt fields. Moreover, wing size, a trait that has a heritable basis in this species, was significantly larger in the pond populations, which is in concordance with the unstable nature of this habitat. The relationship between IDH1 allele frequencies and wing size variation was consistent with patterns seen across western European populations. By means of neutral allozymes and microsatellites we detected a small but significant degree of sexual isolation between ecotypes. We conclude that speciation is ongoing and that divergence reflects a balance between selection and gene flow.
Located in Library / RBINS Staff Publications