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Inproceedings Reference Concentration and composition of Suspended Particulate Matter along nearshore to offshore transects
Located in Library / RBINS Staff Publications 2025 OA
Inproceedings Reference Budgeting the particulate organic matter from the suspended particulate matter in shelf seas
Located in Library / RBINS Staff Publications 2025 OA
Inproceedings Reference Intra-annual variability of marine floc morphology in southern North Sea coastal waters using in-situ high-resolution underwater imaging and the SANDI Python package
Located in Library / RBINS Staff Publications 2025 OA
Inproceedings Reference Intra-annual variability of marine floc morphology in southern North Sea coastal waters using in-situ high-resolution underwater imaging
Located in Library / RBINS Staff Publications 2025 OA
Inproceedings Reference Phytoplankton enhances the flocculation of suspended particulate matter in a tidal, turbid estuary
Located in Library / RBINS Staff Publications 2025 OA
Inproceedings Reference Análisis de múltiples isótopos de restos humanos del sitio pre-Incaico de Pachacamac, Perú
El sitio de Pachacamac, en Perú, ha estado ocupado por más de 1.000 años. Está compuesto por tres recintos concéntricos. En esta investigación se estudia la tumba colectiva pre-Incaica Cx4, que fue hallada en el Segundo Recinto. Cx4 es una tumba colectiva de forma ovalada, de aproximadamente 10 m2, excavada en la tierra y arena hasta una profundidad de alrededor de 1,60 m. Está dividida en dos cámaras de unos 4 m2 cada una, separadas por un muro, y cubierta por un techo de troncos y fibras vegetales, sostenido por seis postes verticales. En el muro divisorio se dispusieron cuatro individuos en posición flexionada. En la cámara oeste se encontraron 16 adultos y ocho individuos inmaduros. En la cámara este se hallaron 16 adultos y 18 individuos inmaduros. En ambas cámaras, los difuntos estaban acompañados por numerosos ajuares funerarios. En este póster se presentan los análisis iniciales de isótopos de carbono, oxígeno y estroncio realizados en los dientes de los individuos adultos. Los resultados destacan diferencias tanto entre hombres y mujeres como entre los individuos enterrados en las distintas cámaras.
Located in Library / RBINS Staff Publications 2025
Inproceedings Reference Taxonomic revision of the Afrotropical hover fly genus Chasmomma Bezzi (Diptera: Syrphidae)
The taxonomy of the Afrotropical hover fly genus Chasmomma Bezzi (Diptera: Syrphidae) is revised. In total, six species are recognized, of which one is new to science. Known species are redescribed and the female of C. minutum is described for the first time. DNA barcoding allowed to unambiguously identify all species. A phylogenetic analysis of full mitochondrial genomes yielded a fully resolved species tree.
Located in Library / RBINS Staff Publications 2025
Inproceedings Reference Do diversification and dispersals of early Eocene perissodactyls differ from those of other modern mammals?
Perissodactyls make their first appearance in the fossil record during the Paleocene-Eocene Thermal Maximum (PETM), 56 Ma ago, at the same time as most modern placental mammal orders. However, their early diversification remains unclear since all main groups (Equidae, Isectolophidae, Ceratomorpha, Ancylopoda and Brontotheriidae) appear at the same time with numerous genera and are already diverse, contrary to other modern mammal orders, which have a much lower diversity. Moreover, several early perissodactyl genera seem endemic to each of the three Holarctic continents, rather than cosmopolitan as is the case for other mammal groups. We investigate the early evolution of perissodactyls by analyzing a new dataset focusing on early species to obtain a new expansive phylogeny. This large-scale phylogeny shows that the number of early perissodactyl genera was over-estimated and supports the synonymy of several genera. In addition, many species that were named as “Hyracotherium” in the past (or sometimes “Eohippus”, the “dawn-horse”) are not actually closely related to horses, including Hyracotherium itself, but can be considered as basal perissodactyls. Among the latter, at least Pliolophus and Cardiolophus experienced vast and fast dispersals between North America, Europe and Asia, during the PETM. This paleobiogeographic scenario much resembles the one of other earliest Eocene mammals, which comprise genera that are often found in at least two continents, such as in artiodactyls, primates, carnivorans, hyaenodontids, hyopsodontids, phenacodontids or rodents. Here, we show that the paleobiogeographic distribution of earliest perissodactyls does not differ from that of other modern mammals.
Located in Library / RBINS Staff Publications 2025 OA
Inproceedings Reference Tomography of three articulated perissodactyl skeletons from Messel
The perissodactyls from the UNESCO World Heritage site of Messel (MP11; around 47 Ma) are among the most well-known fossils from this site, and belong to at least five different genera: three equoids (Propalaeotherium, Eurohippus, and Hallensia) and two tapiromorphs (Lophiodon and Hyrachyus). Here, we investigated by X-ray microtomography at the DTHE (MateIS Laboratory, Lyon) the anatomy of three articulated skeletons from the Royal Belgian Institute of Natural Sciences collection: two specimens of Eurohippus messelensis, as well as the only accessible skeleton of Hallensia matthesi. The segmented 3D models allow us to visualize for the first time some cranial, dental and postcranial features that were previously concealed. Surprisingly, the tooth rows of the two specimens of E. messelensis show two different morphologies. One is typical of E. messelensis whereas the other shows all the diagnostic characters of E. parvulus expressed by Franzen (2006). However, based on the monograph on equoids from Messel by Franzen (2007), E. messelensis was only recognized in Messel, whereas E. parvulus was known from several other localities, notably in the Geiseltal, but not in Messel. We thus suggest that E. parvulus may have also been present in Messel, which raises the question of their potential synonymy. Finally, the preservation of the skeleton of Hallensia matthesi does not permit to observe the fine anatomy of the skeleton, but still permits to discuss important characters such as the number of fingers.
Located in Library / RBINS Staff Publications 2025 OA
Inproceedings Reference The biodiversity of the Eocene Messel vertebrates based on the Belgian Collections
The paleontological collections of the Royal Belgian Institute of Natural Sciences include a beautiful collection of 393 vertebrate specimens from the Messel Pit: 58 fish, 18 amphibians, 79 reptiles, 108 birds and 130 mammals. This collection is the largest Messel collection outside Germany and belongs to the „big four” (Smith et al. 2024). It results from a fieldwork partnership with the Seckenberg Research Institute, Frankfurt between 1982 and 1988, so a few years before the Messel pit was listed in 1995 as UNESCO World Heritage site. With a few exceptions, most of the specimens have been collected by the Belgians. However, most of the specimens have been prepared by German preparators. Here we show the Messel biodiversity based on the Brussels collection. The collection is relatively well diversified and contains 24 type and figured specimens. Among them are remarkable specimens such as the holotype of the hyaenodont carnivorous mammal Lesmesodon edingeri, the paratypes of the trogon bird Masillatrogon pumilio and embalonurid bat Tachypteron franzeni, the exquisitely 3-D prepared turtle lovers Allaeochelys crassesculpta and armored crocodylia Diplocynodon deponiae, and the only skeleton of the basal perissodactyl Hallensia matthesi housed in a public collection. The archives related to this collection are currently being digitized and several new studies are now based on micro-CT scan technology allowing to „discover” hidden characters.
Located in Library / RBINS Staff Publications 2025 OA