Fig. 1: Lineage diversity shifts in Afro-Arabian primates, rodents, and hyaenodonts.
From: Widespread loss of mammalian lineage and dietary diversity in the early Oligocene of Afro-Arabia
a Composite time-scaled tree of Afro-Arabian primates and rodents used for calculation of lineage diversity shifts from the Eocene to Recent. See Supplementary Fig. 1 for full tree. b Black line is the lineage through time (LTT) plot based on the composite tree in (a); light blue histogram shows number of tips in the composite tree in 1 Ma long bins; top, high-resolution astronomically dated benthic carbon (δ13C‰) and oxygen (δ18O‰) isotope curves from the early Eocene to Recent, from Westerhold et al.4. δ18O‰ curve provides a proxy for mean temperature difference from the present day. c LTT plot for the composite tree compared to 10,000 random trees with the same tip ages as the composite tree, but random topologies and branch lengths. d LTT plot for Afro-Arabian Hyaenodonta, a clade of carnivorous placentals that were likely the primary mammalian predators of the primates and rodents in the composite tree. Dan. = Danian, Se. = Selandian, Th. = Thanetian, Bart. = Bartonian, Rup. = Rupelian, Chat. = Chattian, Aq. or Aqui. = Aquitanian, Burd. = Burdigalian, L. or Lan. = Langhian, S. or Ser. = Serravallian, Tort. = Tortonian, M or Mes. = Messian, UD = undivided.
