Evolution of Galaxy morphologies in Clusters
  We have studied the evolution of galaxian morphologies from ground-based, good-seeing images of 9 clusters at z=0.09-0.25. The comparison of our data with those relative to higher redshift clusters (Dressler et al. 1997) allowed us to trace for the first time the evolution of the morphological mix at a look-back time of 2-4 Gyr, finding a dependence of the observed evolutionary trends on the cluster properties. 
Giovanni Fasano, Bianca M. Poggianti, Warrick J. Couch, Daniela   Bettoni, Per Kjaergaard, Mariano Moles