The Río Belgrano Formation is a Barremian to Aptian geologic formation of the Austral Basin in Patagonia, southern Argentina. Among others, pterosaur and ichthyosaur fossils have been recovered from the formation.Río Belgrano Formation at Fossilworks.org
Fossil content The following fossils have been recovered from the formation:Río Roble at Fossilworks.org Hatchericeras patagonense Palaeastacus terraereginae Platypterygius hauthaliPáramo, 2018, p.6 Sanmartinoceras africanum Tonohamites aequicingulatus ?Anhangueridae indet.
See also List of pterosaur-bearing stratigraphic units
References
Bibliography
Further reading M. B. Aguirre Urreta. 1989. The Cretaceous decapod Crustacea of Argentina and the Antarctic Peninsula. Palaeontology 32(3):499-552 M. B. Aguirre Urreta. 1986. Aptian ammonites from the Argentinian Austral Basin. The Subfamily Helicancylinae Hyatt, 1894. Annals of the South African Museum 96(7):271-314 J. F. Bonaparte. 1978. El Mesozoico de America de Sur y sus Tetrapodos [The Mesozoic of South America and its tetrapods]. Opera Lilloana 26:1-596