Distorted oolites and pseudoolites are relatively rare occurrences in the geological column. They have been described in oolitic iron ores, phosphorites, limestones, argillaceous, and sideritic deposits. The shapes created by the distortion processes are very characteristic and independent from the mineralogical composition. They illustrate a complete gradation from plastic deformation to the rupture of rigid bodies. The distortion, which is localized in pockets or affects only isolated individuals, has always preceded the deposition of the cement and compaction wherever the latter has been active. The conclusion is reached that the distortion was generated during sedimentation in agitated conditions and resulted from the reciprocal impacts among oolites or pseudoolites at different stages of diagenetic induration.