Trace fossils record in situ animal–substrate interactions and constitute key proxies for paleoecological and paleoenvironmental reconstructions, although their generally long stratigraphic ranges limit biostratigraphic applications. Recent multi-proxy studies integrating ichnological, paleontological, and geochronological data have demonstrated that such limitations can be overcome, revealing temporal reassignments driven by convergent ecological strategies, including the ‘déjà vu effect’. In the Ibiracatu region (Minas Gerais, Brazil), trace fossils attributed to bilaterian organisms were reported from successions tentatively assigned to the Ediacaran–Cambrian Bambuí Group. However, the lack of integrated stratigraphic and chronological constraints has generated uncertainty regarding their age and depositional context. Here, we combine detailed sedimentological and stratigraphic analysis, ichnological characterization, and geochronological data to establish the stratigraphic framework, depositional environments, and maximum depositional age of the trace fossil-bearing succession. Our data indicate that the Bambuí Group formed in a storm-influenced restricted marine system, whereas the ichnofossil-bearing succession developed within turbiditic deposits in a lacustrine setting. The ichnofauna comprises eleven ichnospecies, representing a mixed Scoyenia–Mermia ichnofacies, containing the Diplopodichnus association. The ichnodiversity combined with zircon provenance data indicates that the succession belongs to the Santa Fé Group, deposited during the Late Paleozoic Ice Age. Therefore, its occurrence within the Bambuí Group registers a tectonically trapped record due to fault reactivation associated with glacioeustatic adjustments following ice retreat.