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We present HST photometry and Keck spectroscopy of globular clusters (GCs) inthe nearby S0 galaxy NGC 7457. The V-I color-magnitude diagram of GCs lacks theclear bimodality present in most early-type galaxies; there may be asignificant population of intermediate-color objects. Of 13spectroscopically-observed GCs, two are unusually metal-rich and feature bright[O III] emission lines. We conclude that one probably hosts a planetary nebulaand the other a supernova remnant. Such emission line objects should be morecommon in an intermediate-age stellar population than in an old one. Wetherefore suggest that, in addition to the typical old metal-rich and oldmetal-poor GC subpopulations, there may be a third subpopulation ofintermediate age. Such a subpopulation may have been formed ~2-3 Gyr ago, inthe same star-forming event that dominates the stellar population of the centerof the galaxy.

The Peculiar Globular Cluster System of the S0 Galaxy NGC 7457