My research centers on the Muroidea, a mammalian superfamily that represents a substantial portion of global mammalian diversity. I investigate the systematics of this group by integrating morphological and molecular data from extant and extinct taxa within comprehensive phylogenetic frameworks. Building on these analyses, I explore the taxonomy, divergence times, biogeographic history, and patterns of diversification within muroid lineages. As a paleontologist, I place particular emphasis on including fossil taxa in these processes to finally gain a better understanding of the abiotic and biotic mechanisms that have shaped the muroid evolutionary history and ultimately given rise to its present-day diversity.