A5011660223- melanin and skin pigmentation
- Ichthyology and Marine Biology
- Corneal surgery and disorders
- Proteoglycans and glycosaminoglycans research
- Proteins in Food Systems
- Paleontology and Evolutionary Biology
- Ocular Surface and Contact Lens
- Dyeing and Modifying Textile Fibers
- Mineralogy and Gemology Studies
- Geology and Paleoclimatology Research
- Identification and Quantification in Food
- Skin and Cellular Biology Research
- Neurobiology and Insect Physiology Research
- Fish biology, ecology, and behavior
- Skin Protection and Aging
- Enzyme Structure and Function
- Animal Behavior and Reproduction
- Food Chemistry and Fat Analysis
- Pleistocene-Era Hominins and Archaeology
- Biochemical Analysis and Sensing Techniques
- Paleontology and Stratigraphy of Fossils
- Calcium Carbonate Crystallization and Inhibition
University College Cork
2019-2025
University of Worcester
2016-2020
Fossil feathers are usually preserved as carbonaceous films and impressions in lacustrine marine sediments, or embedded amber, but rarely mineralized. We report mineralized plumage of a griffon vulture an ash-rich pyroclastic deposit from the Late Pleistocene Colli Albani volcanic complex (Rome, Italy). Feathers three dimensions, with preservation tissue ultrastructures such melanosomes surrounding feather cortex. These nanocrystalline zeolite, mode not previously reported fossil soft...
Fossils are a key source of data on the evolution feather structure and function through deep time, but their ability to resolve macroevolutionary questions is compromised by an incomplete understanding taphonomy. Critically, relative preservation potential two components, melanosomes keratinous tissue, not fully resolved. Recent studies suggesting that preferentially preserved conflict with observations preserve in fossil feathers as external moulds organic matrix. To date, there no model...
Melanin pigments play a critical role in physiological processes and shaping animal behaviour. Fossil melanin is unique resource for understanding the functional evolution of but impact fossilisation on molecular signatures eumelanin and, especially, phaeomelanin not fully understood. Here we present model chemical taphonomy fossil based thermal maturation experiments using feathers from extant birds. Our results reveal which are authentic signals thermally matured phaeomelanin, artefacts...
Abstract The evolution of modern sharks, skates and rays (Elasmobranchii) is largely enigmatic due to their possession a labile cartilaginous skeleton; consequently, taxonomic assignment often depends on isolated teeth. Bullhead sharks (Heterodontiformes) are group basal neoselachians, thus remains relationships integral understanding elasmobranch evolution. Herein we fully describe † Paracestracion danieli – bullhead shark from the Late Jurassic plattenkalks Eichstätt, Germany (150–154 Ma)...