A5082256325- Paleontology and Evolutionary Biology
- Evolution and Paleontology Studies
- Ichthyology and Marine Biology
- Amphibian and Reptile Biology
- Fish biology, ecology, and behavior
- Ocular Surface and Contact Lens
- Geological formations and processes
- Paleontology and Stratigraphy of Fossils
- Fern and Epiphyte Biology
- Plant Diversity and Evolution
- Crustacean biology and ecology
- Geological and Geochemical Analysis
- Animal Behavior and Reproduction
- Fish Biology and Ecology Studies
Institute of Natural Sciences
2015-2023
University College Cork
2019-2022
University of Namur
2015-2019
Environmental Earth Sciences
2019
Remarkably well-preserved soft tissues in Mesozoic fossils have yielded substantial insights into the evolution of feathers1. New evidence branched feathers pterosaurs suggests that originated avemetatarsalian ancestor and dinosaurs Early Triassic2, but homology these pterosaur structures with is controversial3,4. Reports homogeneous ovoid melanosome geometries2,5 suggest they exhibited limited variation colour, supporting hypotheses early functioned primarily thermoregulation6. Here we...
Abstract Feathers are amongst the most complex epidermal structures known and they have a well-documented evolutionary trajectory across non-avian dinosaurs basal birds. Moreover, melanosome-like microbodies preserved in association with fossil plumage been used to reconstruct original colour, behaviour physiology. However, these putative ancient melanosomes might alternatively represent microorganismal residues, conflicting interpretation compounded by lack of unambiguous chemical data. We...
Rhabdodontidae is a successful clade of ornithopod dinosaurs, characteristic Late Cretaceous continental faunas in Europe. A new rhabdodontid from the late Campanian, southern France, Matheronodon provincialis gen. et sp. nov., characterized by extreme enlargement both its maxillary and dentary teeth, correlated to drastic reduction number teeth (4 per generation MMS/VBN-02-102). The interalveolar septa on maxilla are alternately present or resorbed ventrally so as be able lodge such...
A series of pterosaur bones from the Upper Cretaceous (Campanian) Velaux (Bouches-du-Rhône, southeastern France) is described. This material, including both cranial and postcranial elements found in close association likely belonging to a single immature individual, assigned new genus species azhdarchid pterosaur, Mistralazhdarcho maggii. large-sized taxon (wingspan ca. 4.5 m holotype, possibly reaching 5–6 mature individuals) characterized by slightly downturned mandibular symphysis that...
The Velaux-La Bastide Neuve fossil-bearing site (Bouches-du-Rhône, France) has yielded a diverse vertebrate assemblage dominated by dinosaurs, including the titanosaur Atsinganosaurus velauciensis. We here provide complete inventory of fossils collected during two large-scale field campaigns. Numerous crocodilian teeth occur together with skulls. Pterosaur, hybodont shark and fish elements are also represented but uncommon. Magnetostratigraphic analyses associated biostratigraphic data from...
Abstract With approximately 1,500 extant species, freshwater crabs (Decapoda: Brachyura) are among the most diverse decapod crustaceans. Nevertheless, their fossil record is extremely limited: only Potamidae, Potamonautidae and Trichodactylidae reported up to Eocene of Neotropics so far. This work documents unusually large claws from Upper Cretaceous (Campanian) continental deposits Velaux vicinity (southern France), in close association with vertebrate remains. In addition (1) systematic...
Diverse epidermal appendages including grouped filaments closely resembling primitive feathers in non-avian theropods, are associated with skeletal elements the ornithischian dinosaur Kulindadromeus zabaikalicus from Kulinda locality south-eastern Siberia. This discovery suggests that "feather-like" structures did not evolve exclusively theropod dinosaurs, but were instead potentially widespread whole clade. The dating of is therefore particularly important for reconstructing evolution...
Abstract A panel of geochemical techniques is used here to investigate the taphonomy fossil feathers preserved in association with skeleton Jurassic theropod Anchiornis huxleyi . Extant were analysed parallel test whether soft tissues morphologically also exhibit a high degree chemical preservation. Scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) indicate that clays iron oxide pseudomorphs occur surrounding sediment reveal preservation melanosome‐like microbodies...
The posterior part of a skull from tapejarid pterosaur was studied for the exceptional preservation its soft-tissues. specimen comes Early Cretaceous (Aptian) Crato Formation northeastern Brazil. It shows peculiar soft sagittal crest that gives new information about anatomy and diversity tapejarids. lies on five limestone slabs. bony comprised skull, with braincase one complex three dorsally oriented associated crests. consists huge elongated parietal crest, trabecular frontal an occipital...
Abstract With approximately 1,500 extant species, freshwater crabs (Decapoda: Brachyura) are among the most diverse decapod crustaceans. Nevertheless, their fossil record is extremely limited: only Potamidae, Potamonautidae and Trichodactylidae reported up to Eocene of Neotropics so far. This work documents unusually large claws from Upper Cretaceous (Campanian) continental deposits Velaux vicinity (southern France), in close association with vertebrate remains. In addition (1) systematic...
The posterior part of a skull from tapejarid pterosaur was studied for the exceptional preservation its soft-tissues. specimen comes Early Cretaceous (Aptian) Crato Formation northeastern Brazil. It shows peculiar soft sagittal crest that gives new information about anatomy and diversity tapejarids. lies on five limestone slabs. bony comprised skull, with braincase one complex three dorsally oriented associated crests. consists huge elongated parietal crest, trabecular frontal an occipital...