Metabolic heat production in archosaurs has played an important role in their evolutionary radiation during the Mesozoic, and their ancestral metabolic condition has long been a matter of debate in sy
Here, I demonstrate that pycnodonts were polyphyodont animals, through radiographic highlights of dental gems in various states of maturation that are present in both the prearticular and the vomer of
As many as eight species of the “anchitherine” equid Miohippus have been identified from the John Day Formation of Oregon, but no statistical analysis of variation in these horses has yet been conduct
