Fig. 1

Geographical location of the fossiliferous sites mentioned by Roth in his catalogues. The sites are in Pampean region, Argentina (A), including Buenos Aires, Córdoba, Entre Ríos, and Santa Fe provinces (B). Localities are not exact. Detail of the sites at the riverbanks of the Paraná River are shown in (C). Map produced with QGIS V.3 3.22.0. The shape for the map was obtained from Instituto Geográfico Nacional, Argentina (http://www.ign.gob.ar)