Stratigraphy of the Upper Cretaceous Neuquén Group (after Garrido) indicating stratigraphic positions of definitive unenlagiine taxa (modified from Gianechini and Gianechini & Apesteguía). Skeletal reconstructions to approximate scale, redrawn and/or modified from works by Scott Hartman (Buitreraptor gonzalezorum, Austroraptor cabazai), Gabriel Lio (Unenlagia comahuensis, Neuquenraptor argentinus, Unenlagia paynemili), and Jaime Headden (Pamparaptor micros, Diuqin lechiguanae), used with permission