Galaxy type fraction vs. environmental density region (HDMD = high dark-matter density, IDMD = intermediate dark-matter density, LDMD = low dark-matter density) for J0152.7 cluster galaxies. Error bars in galaxy type fractions are from Poisson counting statistics. There is a strong increase in regular elliptical and S0 galaxies and decrease in peculiar, compact, and merging galaxies in the intermediate-density and high-density regions compared to the cluster outskirts. This pattern suggests that large-scale morphological transformation may occur before reaching the cluster core.