Classification of the sample of 26 significant CRDs according to their counterrotating stellar disk extension ($R_{95}^{\mathrm{CRD}}/R_{\mathrm{opt}}$) and to their ex situ fraction of stellar particles. We classified the CRDs into four different types, namely, extended ex situ (yellow quadrant), compact ex situ (red rombus quadrant), compact in situ (blue triangle quadrant) and extended in situ (orange circle quadrant).