TY - RPRT TI - Transitional evolutionary forms and stratigraphic trends in chasmosaurine ceratopsid dinosaurs : evidence from the Campanian of New Mexico AU - Fowler, D. W. AU - Freedman Fowler, E. A. PY - 2019 DO - 10.1101/854794 UR - https://www.biorxiv.org/content/10.1101/854794v1 ID - 10.1101/854794 ER -