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Table 2 LASER analysis using a constant-rate birth-death model with no extinction (a = 0) against variable-rates models with 2 and 3 rates (r) and 1 or 2 time shifts given for best fitting model (ts; time unit is million years ago).

From: Diversification of land plants: insights from a family-level phylogenetic analysis

  Birth-death model (a = 0) 2-rates model (r1, r2, ts) 3-rates model (r1, r2, r3, ts1, ts2)
Angiosperms    
AIC 274.8786 -6.7234 -43
Delta AIC 0 281.602 317.40126
Ts1    27.53
Ts2    52.43
Ferns    
AIC 233.6887 232.7399 231.2457
Delta AIC 0 0.9488 2.443
Ts1    60.02
Ts2    106.39
Mosses    
AIC 388.785 306.4588 301.9242
Delta AIC 0 82.3262 86.8608
Ts1    35.19
Ts2    132.65
Gymnosperms    
AIC 113.2583 107.9801 109.1307
Delta AIC 0 5.2782 4.1276
Ts   153.76  
Liverworts    
AIC 416.5246 365.2789 360.1666
Delta AIC 0 51.2457 56.358
Ts1    99.52
Ts2    183.89