Thesiss

Environmental perturbations associated with the late-Permian mass extinction and Early Triassic recovery are widely studied, and our understanding of global events during this biotic crisis continues to improve. Marine carbonates preserve geochemical proxy records of global chan…

The interrelationships and phylogenetics of extinct Paleozoic and Early Mesozoic ray-finned fishes (Actinopterygii) are obscured by a low-quality fossil record and understudy of Late Paleozoic (Permo-Carboniferous) actinopterygians. To help address this issue, I describe a new s…