Table 2. Fit of alternative diversity models to LTT plots derived from Bayes and MLA chronograms.

	AICa							ΔAICRC testb
Method	Yule	Birth-Death	Bestconstantmodel	DDL	DDX	Yule 2rates	Bestvariablemodel	ΔAICRC	P valuee	Bestmodel	λ (ML) ± sef
Bayes	190.64	192.64	Yule	193.06	192.60	193.28c	DDX	−1.2668	0.6359	Yule	0.0119±0.0020
MLA	185.06	187.07	Yule	187.15	186.98	187.17d	DDX	−1.9119	0.8928	Yule	0.0129±0.0012

^aAkaike Information Criterium.

^bΔAIC_RC test. See text for details.

^cbreakpoint at 13 Ma ago.

^dbreakpoint at 1.3 Ma ago.

^e P value obtained by simulation (5,000 iterations). See text for additional explanation of simulations.

^fstandard error.