“…The fossil record of Ceratophryidae dates back to the Late Miocene and it is quite rich compared with the scarce fossil record of most other neotropical anuran groups (Barcelos & dos Santos, 2022; Gómez et al, 2013; Pérez-Ben et al, 2019a, b; Turazzini et al, 2016). Despite the broad South American distribution of extant forms, fossils are largely concentrated in the Argentinean Pampas and consist mostly of variably complete cranial remains and comparatively few, mainly isolated, postcranial bones of Ceratophrys (Agnolin, 2005; Barcelos et al, 2020; Fernicola, 2001; Gómez & Turazzini, 2021; Marshall & Patterson, 1981; Nicoli, 2016, 2017, 2019; Peri, 1993; Stoessel et al, 2008), whereas no fossils are known for Chacophrys, and only three specimens, including the one described herein, have been identified as Lepidobatrachus so far (Gómez & Turazzini, 2021; Nicoli, 2015; Tomassini et al, 2011; Turazzini, 2015).…”