Figure 2.

A consensus phylogeny of fission yeasts. Times are (1) 1,200 million years ago (Ma); (2) 1,100 to 1,000 Ma; (3) 600 to 500 Ma; (4) 400 Ma; (5) 420 to 330 Ma; (6) 250 Ma. (Modified from [2,9,12,13,14,15,20].)