Table 2. Divergence times for the most recent common ancestor (MRCA) of representative clades.

Summary of mean ages and 95% Highest Posterior Densities (HPDs) estimated with an uncorrelated log normal relaxed clock and FBD diversification model for a combined dataset for the Ichthyomyini and outgroup taxa. Ages in millions of years ago (Mya).

Taxon	Mean age	95% HPDs
Sigmodontinae	8.95	7.75–10.18
Sigmodontalia	7.89	6.74–9.09
Oryzomyalia	6.34	5.80–9.64
Ichthyomyini	4.96	4.16–5.79
Sigmodon	2.92	2.76–3.00
Ichthyomyina	3.65	3.13–4.22
Rheomys + Ichthyomys	2.56	2.07–3.05
Ichthyomys	1.25	0.94–1.57
Chibchanomys trichotis/Neusticomys/ “Chibchanomys”/Daptomys	2.78	2.32–3.27
Daptomys	1.10	0.84–1.37
Neusticomys	1.13	0.86–1.43