-
Cave bear (Ursus spelaeus) from Chamber B of the Goyet Cave in Belgium
-
Located in
Library
/
RBINS Staff Publications
-
Le chien, un ami de 32000 ans
-
Located in
Library
/
RBINS Staff Publications
-
Virtual biomechanical analysis of the lower limbs of a Neandertal
-
Located in
Library
/
RBINS Staff Publications
-
The Earliest Bats from Europe
-
Chiroptera is one of the few modern mammal orders for which no fossil record has been associated with the Paleocene-Eocene Thermal Maximum that happened 55.8 million years ago. With the exception of complete skeletons from the early Middle Eocene of the Messel Formation in Germany and the late Early Eocene Green River Formation in Wyoming, all early bats are only represented by isolated elements, mainly teeth and fragmentary jaws, making the diversity and taxonomic affinities more difficult to establish. Here we revise all of the Early Eocene bats from Europe based on dental features, including digitally reconstructed teeth using micro-CT scanning technology of some complete skeletons. The diversity of European early bats is composed of the families Onychonycteridae, Icaronycteridae, Archaeonycteridae, Palaeochiropterygidae, and some of undetermined affinities. Dental features and synapomorphies of each family are characterized for the first time. The earliest bats are dated from the early Early Eocene and are all of small size with lower molars less than 1.3 mm in length. They are represented by: Eppsinycteris anglica from Abbey Wood, east London, England, an onychonycterid with reduced lower p4 and long molars; Archaeonycteris? praecursor from Silveirinha, Portugal, an archaeonycterid with long postcristid on wide lower molars; a new archaeonycterid genus and species from Meudon, North France with long trigonid and shorter postcristid on wide lower molars. These results indicate that the diversity of European Early Eocene bats is higher than previously recognized and that diversification began early in the Early Eocene.
Located in
Library
/
RBINS Staff Publications
-
Prionus antonkozlovi n. sp. de Chine (Coleoptera, Cerambycidae, Prioninae)
-
Located in
Library
/
RBINS Staff Publications 2021
-
The systematic position of Pamera noctuabunda Bergroth, 1907 (Hemiptera: Heteroptera: Rhyparochromidae), with a revised key to the species of Satlaria Harrington, 1980
-
Located in
Library
/
RBINS collections by external author(s)
-
The Old World species of Thinodromus Kraatz, 1857 morphologically resembling the former Apocellagria Cameron, 1920 (Coleoptera: Staphylinidae: Oxytelinae)
-
Located in
Library
/
RBINS collections by external author(s)
-
Is vertebral shape variability in caecilians (Amphibia: Gymnophiona) constrained by forces experienced during burrowing?
-
Caecilians are predominantly burrowing, elongate, limbless amphibians that have been relatively poorly studied. Although it has been suggested that the sturdy and compact skulls of caecilians are an adaptation to their head-first burrowing habits, no clear relationship between skull shape and burrowing performance appears to exist. However, the external forces encountered during burrowing are transmitted by the skull to the vertebral column, and, as such, may impact vertebral shape. Additionally, the muscles that generate the burrowing forces attach onto the vertebral column and consequently may impact vertebral shape that way as well. Here, we explored the relationships between vertebral shape and maximal in vivo push forces in 13 species of caecilian amphibians. Our results show that the shape of the two most anterior vertebrae, as well as the shape of the vertebrae at 90% of the total body length, is not correlated with peak push forces. Conversely, the shape of the third vertebrae, and the vertebrae at 20% and 60% of the total body length, does show a relationship to push forces measured in vivo. Whether these relationships are indirect (external forces constraining shape variation) or direct (muscle forces constraining shape variation) remains unclear and will require quantitative studies of the axial musculature. Importantly, our data suggest that mid-body vertebrae may potentially be used as proxies to infer burrowing capacity in fossil representatives.
Located in
Library
/
RBINS Staff Publications 2022
-
Generalized osteosclerotic condition in the skeleton of Nanophoca vitulinoides, a dwarf seal from the Miocene of Belgium
-
Located in
Library
/
RBINS Staff Publications 2018
-
Les collections de paléontologie de l’IRSNB : réelles et/ou virtuelles ?
-
Dans la course contre la montre à qui rendra le plus accessible les collections des musées d’histoire naturelle, l’Institut royal des Sciences naturelles de Belgique s’est doté d’outils maison « Open Source » afin de valoriser ses 38 millions de spécimens. Ceux-ci datent parfois d’époques reculées et demandent donc généralement une restauration et un reconditionnement physique (reboxing des Anglo-Saxons) ainsi que leur encodage dans des bases de données efficaces permettant à la fois l’inventaire et la géolocalisation dans les conservatoires où ils sont préservés. Dans ce cadre, la base de données Darwin « darwin.naturalsciences.be » (système de gestion PostgreSQL) stocke les données et métadonnées relatives aux spécimens des collections de l’IRSNB. La plateforme Virtual Collections « virtualcollections.naturalsciences.be » permet elle l’accès aux images et aux modèles 3D des spécimens types et figurés, bien nécessaire dans ce monde devenu (si) virtuel. Elle est divisée en six collections principales : entomologie, invertébrés récents, vertébrés récents, anthropologie-préhistoire, géologie et paléontologie. Cette dernière, bien que n’étant qu’au début du processus de numérisation de ses 42.000 types et figurés sur 3 millions de spécimens fossiles, n’en est pas la moins diversifiée au niveau des techniques de prises d’images. En effet, on y trouve déjà des photographies digitales à haute résolution prises en photostaking, d’autres au microscope électronique à balayage, sans compter des modèles tridimensionnels provenant d’acquisition par micro-tomographie ou photogrammétrie. Mais tout ceci n’aurait aucune valeur scientifique sans les données historiques et bibliographiques liées aux spécimens. Ce volet disponible via Collections«°collections.naturalsciences.be » sera développé pour la paléontologie dans une troisième phase. Il inclura, outre les données historiques et bibliographiques, les articles numérisés au format pdf. S’il est clair que ces trois outils virtuels aident grandement à l’accessibilité rapide des collections paléontologiques et à leurs données, ils ne remplacent toutefois pas les spécimens de référence qui font partie d’un patrimoine mondial (One World Collection initiative) et restent accessibles aux globe-trotteurs que sont les chercheurs.
Located in
Library
/
RBINS Staff Publications 2018