“…Our conclusions would not have been possible without the noteworthy increase in knowledge on taxonomy, distribution, ecological requirements and fossil record of small mammals of the region in recent years, which begins to show general trends on the evolution of these communities in the Quaternary and their close connection with the environmental changes (e.g. d’Hiriart et al, 2015, 2017, 2021a, 2021b; Gomez et al, 2012; Guilardi et al, 2020; Jayat et al, 2007, 2008a, 2008b, 2010, 2011, 2016, 2017, 2018, 2020, 2021; Nanni et al, 2012; Ortiz et al, 2000, 2011a, 2011b, 2012, 2019; Ortiz and Jayat, 2007a, 2012; Ortiz and Pardiñas, 2001; Ortiz-Tempel et al, 2022; Teta et al, 2011, 2013, 2022, 2023). Nevertheless, although several Quaternary small mammal assemblages were described for NWA from different periods, our knowledge about short-, medium-, and long-term changes in these communities is still incipient.…”