TableĀ 1.

Ages of crown mammal groups.

crown groupoldest fossil according to O'Leary et al. [10]fossil age (Ma)95% CI of time posterior (Ma)
strategy 1strategy 2dos Reis et al. [3]
MammalDryolestida166.4162.4188.8184.7193.2174.5191.8
TheriaSinodelphis szalayi127.5140.5168.5179.7191.5170.4181.7
MarsupialiaPeradectes minor64.8560.479.977.394.050.783.7
PlacentaliaProtungulatum donnae64.8572.487.6100.8107.488.391.6
AfrotheriaProdiacodon crustulum64.8556.268.378.684.568.572.4
PaenungulateSimpsonotus praecursor61.846.757.165.471.057.761.8
XenarthaRiosgotherium yanei58.352.363.973.379.067.372.4
BoreotheriaP. donnae64.8566.580.693.099.081.183.8
LaurasiatheriaP. donnae64.8560.673.484.990.374.877.1
LipotyphlaLitolestes ignotus58.348.358.967.972.960.661.8
CarnivoraHesperocyon gregarius43.339.448.255.160.252.055.9
ChiropteraArchaeonycteris praecursor55.547.057.265.970.757.660.8
EuarchontogliresPurgatorius coracis64.860.873.785.390.774.677.0
GliresMimotona wana63.456.969.080.185.169.671.8
LagomorphaLeporidae5335.043.052.854.545.849.3
RodentiaSciurus sp.56.851.462.572.877.263.465.5
EuarchontaP. coracis64.8559.672.283.788.973.075.3
PrimatesTeilhardina brandti53.155.367.177.882.767.870.1