Identification and importance of critical depositional gaps in pitfall cave environments: The fossiliferous deposit of Cuvieri Cave, eastern Brazil

► Cuvieri cave has fossiliferous deposits marked by a subtle temporal discontinuity. ► We located this discontinuity due to detailed excavation procedures. ► The discontinuity is associated with changes in sediments and faunal remains. ► The excavation procedure allowed the distinction of different epoch's faunal remains. ► Only detailed studies allow understanding cave's fossiliferous deposits formation.