I am a biologist specialized in ichthyology and ichthyopaleontology. I am interested in the origin and phylogenetic relationships of actinopterygians, especially teleostean fishes based on fossils and morphological, developmental, and molecuiar evidence of extant fishes. I am the recipient of numerous awards including the Humboldt Prize for Contributions to Sciences, the Gibbs Jr. Award for my publication record in ichthyology (American Society of Ichthyologists and Herpetologists), the Artedi Lecturer Award for my contributions to the knowledge of Nature and Sciences (Swedish Academy of Sciences and FishBase), Honorary Member of ASIH, Member of the Academy of Sciences of Chile, and others. My publication record includes over 150 papers, many of them monographs. I am the editor-in-chief of Mesozoic Fishes volumes, and the editor of ten books. Additionally, I am part of the advisory board of a few journals.