Skip to main content

Table 1 Expected and observed species divergence times in MYA

From: Global shifts in species richness have shaped carpet shark evolution

Species divergence treePL1 treePL2 MCMC3 MCMC4 MCMC5 Expected Source for expected
G. cirratum and G. unami 3.7 2.9 4.8 3.9 4 2-5 [12, 55, 56]
O. maculatus and O. halei 23.5 15.9 18.6 15.3 15.3 ≤ 25 [7, 35, 36]
P. collare and G. cirratum 356.5 246.8 203.7 139.7 141.1 171–237 [14, 27, 29, 31, 57]
  1. 1Denotes mean age of penalized likelihood estimates using treePL before outliers were removed
  2. 2Denotes the same as above after outliers were removed
  3. 3Denotes ages inferred with four calibration points selected by our method
  4. 4Denotes ages inferred by using the oldest fossil previously used to calibrate the earliest split in Orectolobiformes (171 MYA)
  5. 5Denotes ages inferred by using the oldest fossil in our data set to calibrate the earliest split in Orectolobiformes (191 MYA)