Apart from the large fresh looking impact crater with its clearly noticeable fluidized ejecta blanket (formed when impact debris mixed with subsurface water or ice), small ancient craters are visible in the southeast of the scene. These have been emplaced before yardang formation but withstood wind erosion better than the surrounding area due to ground compaction during the impact process.

Stunningly, crater ejecta, platy lava flow and yardangs encounter each other south (left) of the large impact crater where the yardang field becomes visible. As yardangs are placed on top of the platy lava flows, they are younger than the latter. Only very few yardangs are within the ejecta zone around the crater so at least these few should be younger than the impact event as they are uncovered by ejecta. Finally it seems that the impact ejecta have covered the platy lava field, meaning that it is younger, but this is not entirely clear. Beyond that one has to keep in mind, that morphologic processes can be repetitive. Thus the analysis of the time sequence remains challenging.

Neigboring areas of Eumenides Dorsum from HRSC orbit 5114 are shown in earlier Press Releases from 2008 and in Medusae Fossae from 2022 (HRSC orbit 21948).