Fig. 1.

Time-calibrated Fish Tree of Life with collapsed clades that highlight the relationships of major groups (ordinal or supraordinal taxa). The backbone tree is from R Betancur-R., G Orti and AR Pyron [27], with four taxonomically-dense clades grafted (see details under “Construction and content”). The complete tree is based on 1990 species of bony fishes (see Fig. 2). Numbers in parenthesis indicate number of orders and families included in each major clade, respectively. Please see Additional file 5 for high resolution image