Ornithopod palaeobiology, pathology and behaviour. Digitalisation of specimens.
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Currently postdoc researcher at RBINS in Brussels, working on the local Iguanodon material. My PhD project was about paleopathologies in ornithopod dinosaurs, their bodily distribution and frequency, and their application to reconstruct aspect of the biology and behaviour of the studied taxa. I am also involved in ornithischian paleobiology and evolution, and sauropod and pterosaur anatomy.
Ouranosaurus nigeriensis is an iconic African dinosaur taxon that has been described on the basis of two nearly complete skeletons from the Lower Cretaceous Gadoufaoua locality of the Ténéré desert in Niger. The entire holotype and a few bones attributed to the paratype formed the basis of the original description by Taquet (1976). A mounted skelet...
Air sacs are an important component of the avian respiratory system, and corresponding structures also were crucial for the evolution of sauropod dinosaur gigantism. Inferring the presence of air sacs in fossils so far is restricted to bones preserving internal pneumatic cavities and foramina as osteological correlates. We here present bone histolo...
Paleopathology, or the study of ancient injuries and diseases, can enable the ecology and life history of extinct taxa to be deciphered. Large-bodied ornithopods are the dinosaurs with the highest frequencies of paleopathology reported to-date. Among these, the crested hadrosaurid Parasaurolophus walkeri is one of the most famous , largely due to i...
Abstract - MSNM V345 is a partial skeleton of the North American hadrosaur species Gryposaurus notabilis, Lambe 1914, discovered in 1922 in the Dinosaur Park Formation of Dinosaur Provincial Park, Alberta, Canada. It was shipped in several crates to the Museo di Storia Naturale di Milano (MSNM), Italy, where it arrived in October 1958. Careless tra...
La collection des iguanodons de Bernissart (Belgique) constitue l'un des plus grands ensembles de restes de dinosaures connus à ce jour dans le monde, et l'une des plus importantes découvertes de l'histoire de la paléontologie. La trentaine de spécimens d'Iguanodon extraite du gisement de 1878 à 1881 a permis des avancées considérables concernant l...
The pterosaur fossil record in Portugal is scarce, comprising mainly isolated teeth and rare postcranial material. Here, we describe a well-preserved right proximal femur of a pterodactyloid pterosaur from the Kimmeridgian, Upper Jurassic Praia da Amoreira–Porto Novo Formation of Peniche, Portugal. It is noteworthy for its relatively large size, co...
The specimen MSNM V345, a nearly complete skeleton of Gryposaurus notabilis from the Dinosaur Park Formation, Alberta, Canada, arrived at the Museo di Storia Naturale di Milano (MSNM) in 1958, after an exchange of paleontological specimens with the Field Museum of Chicago. A preliminary study of the fossil was conducted while part of it was still u...
I have a question regarding FEA analysis in bones.
I scanned a bone with a microCT device, and the result is pretty neat. To translate the data into the polygonal mesh topologized for FEA in Abaqus or Inventor, I have to segment the CT-stack (correct me if I'm wrong, I've just started to scratch the surface of this topic). Is there a "easy" way to segment the cortical bone and the trabecular bone as separated elements? If I understood correctly, to obtain a more confident result in FEA, these two tissues should be present in the final mesh...
Thanks to everyone eager to help :)
3D rendering of the holotype of I. bernissartensis and the skeleton of I. atherfieldensis from the Bernissart Sinkhole. The bones are digitised via HDI scanner, surface scanners and photogrammetry. The psotdoc project is funded by BELSPO-Brain (Belgium).
My research topic aims to analyse pathological bones within the clade Ornithopoda, the dinosaurian lineage that comprises taxa like Iguanodon and the “duck-billed” hadrosaurs. Their skeletons, mainly found in Cretaceous deposits (from 140 to 65 million years ago), often show several bone pathologies, from the skull to the caudal vertebrae. This project will describe the morphology of these diseases, as well as their inner structure (via histology and microCT analyses), comparing them to pathological bones found in extant archosaurs (crocodiles and birds).