The Anfiteatro de Ticó Formation is a geological formation from the Deseado Massif in the province of Santa Cruz, Argentina.

The Anfiteatro de Ticó preserves a rich and diverse flora including macrofossils, mesofossils, and microfossils.

These have been object of detailed investigations since the 1960'.

[1][2][3] The formation is of continental origin, and includes riparian and lacustrine deposits.

The following fossils were reported from the formation:[4]