👉 Palaeornithology is a branch of paleontology that focuses on the fossil record and the remains of animals from the Paleocene, or the middle of the Cretaceous period. It includes the study of various types of dinosaurs such as the Tyrannosaurus rex, Diplodocus, and Triceratops, as well as other extinct species like the Crocodylomorphs and the Sauropods. Palaeornithology is a sub-discipline within paleontology