Transitional evolutionary forms and stratigraphic trends in chasmosaurine ceratopsid dinosaurs : evidence from the Campanian of New Mexico
D. W. Fowler, E. A. Freedman Fowler
The paper describes transitional chasmosaurine dinosaur fossils from New Mexico that show morphological changes between Pentaceratops and Anchiceratops, supporting anagenesis and challenging previous phylogenetic classifications.
bioRxiv · Nov 25, 2019Paleontology