The Antenor Navarro Formation is an Early Cretaceous geologic formation in Brazil.

Fossil sauropod tracks have been reported from the formation.

[1] Antenor Navarro [pt], for whom the formation was named, had been a major leader of the Brazilian Revolution of 1930, which brought Getúlio Vargas to power.

He was killed in a plane crash in 1932, at the age of 34, and his name commemorated also in hundreds of street names and public institutions in Brazilian cities.

[citation needed] Among others the following fossils have been found in the formation:[2]