Top: distribution of stellar mass with Hubble type. Large circles are the mean M_⋆ for each Hubble type, and the gray area marks the one-sigma dispersion in mass for each morphology. Horizontal lines mark the ranges of the five M_⋆ bins defined in Table 1 that are used throughout the paper. Bottom: mass-weighted mean log stellar age versus M_⋆ for the 436 galaxies in the sample, color-coded by the morphological type.