Biology Department, and coauthors published an article in Scientific Reports describing a new genus and species of symmetrodont mammal from Lower Cretaceous Yixian Formation of China.
The fossil is represented by an associated partial skull and dentaries with a nearly complete dentition, and with a dental formula of I4/3 C1/1 P5/4 M3/4. Importantly, the new taxon occupies a basal position within the symmetrodonts and permits discussion of trechnotherian character evolution, ultimately shedding
additional light on the evolution of modern therians.
View the paper online: “
A new symmetrodont mammal (Trechnotheria: Zhangheotheriidae) from the Early Cretaceous of China and trechnotherian character evolution”