Lower Cretaceous Period
Anhanguera species
Ulna and wing metacarpal from the Rio Belgrano Formation, Santa Cruz Province, Argentina, showing strong affinities with Anhanguera.
Kellner A. W. A., Aguirre-Urreta M. B. and Ramos V. A., 2002, On the Pterosaur Remains from the Río Belgrano Formation (Barremian), Patagonian Andes of Argentina. Anais de Academia Brasileira de Ciências. 75(4): pp.487-495. (published May 2003)