Fig. 4: Movement of dental topographic morphospace centroids through time.
From: Widespread loss of mammalian lineage and dietary diversity in the early Oligocene of Afro-Arabia
a Plot of Euclidean movement of the centroid of each clade’s dental topographic morphospace from their inferred arrival time in Afro-Arabia (first divergence) to 15 Ma, and overall path length, along the first two principal components derived from PCA of the three dental topographic metrics (ariaDNE, OPCR, and RFI). b Comparison of Euclidean movement of morphospace centroids within each order (Primates and Rodentia), showing relative shifts through time; red and orange circles indicate the position of the Eocene-Oligocene and Oligocene-Miocene boundaries, respectively.
