Avitabatrachus

Avitabatrachus uliana is the only species discovered so far in the extinct genus Avitabatrachus, a genus of prehistoric frogs that lived in the Middle Cretaceous. Fossils of "A. uliana" were found in the Candeleros Formation of northwestern Patagonia in Argentina. It was properly described in 2000 and was then concluded to be most closely related to Pipidae frogs. Hence, it was included in Pipimorpha.
Etymology.
The genus name, "Avitabatrachus", is derived from the Greek words "avita" meaning "ancient" and "batrachos" meaning "frog", so called because it is the oldest record of pipids in South America. The species is named after Miguel Uliana.