Argentina, Late Cretaceous (late Campanian -lower Maastrichtian)
**Genus +Prochelidella Lapparent de Broin & de la Fuente 2001 Cerro Barcino Formation, Argentina, Early Cretaceous (Aptian-Albian) Candeleros Formation, Argentina, Cenomanian Bajo Barreal Formation, Argentina, Cenomanian-Turonian Portezuelo Formation,