Gilles Guy Roger Cuny

The research primarily focuses on the evolution of sharks, particularly the origin and early diversification of neoselachian sharks and the adaptations of hybodont sharks to freshwater habitats. Additionally, it encompasses the study of various mesozoic vertebrate microremains, utilizing both morphological and histological methods to analyze shark teeth. The microstructure of enameloid is especially valuable for understanding the phylogenetic relationships and dietary habits of ancient sharks.