Its age is confirmed as mostly Early Hettangian through stratigraphic and paleontological analyses, including fossil flora and conchostraca findings.

[7][8] The Zagaje Formation’s deposits are know from both outcrops and borehole profiles that consist primarily of sandstones, mudstones, and interspersed coal and siderite layers.

[10] The high presence of coprolites has allow also to stablish the tropic chain of the local biota, with a clear full ecosystemical substitution of the older Triassic archosaurs by Dinosaurs.

[14] Unidentified Actinopterygian fish scales and teeth were collected from clayish, organic-rich lake deposits, while some coprolites have been referred to Hybodontiform sharks.

[5] In Palynology, the Zagaje Formation belongs to the Nathorstisporites hopliticus assemblage (Isoetales), indicating a spike in marshland and lacustrine settings.