Itaboraian

Stratigraphy and location of the Itaboraí Basin.
Crocodile skull indicates Sahitisuchus find.

The Itaboraian (Portuguese: Itaboraiense) age is a period within the Early Eocene geologic time (53.0–50.0 Ma) epoch of the Paleogene, used more specifically with South American land mammal ages (SALMA). It follows the Riochican and precedes the Casamayoran age.[1]