| Ixtaltepec Formation | |
|---|---|
| Stratigraphic range: Pennsylvanian | |
| Type | Formation |
| Location | |
| Region | Oaxaca |
| Country | Mexico |
The Ixtaltepec Formation is a geologic formation in Oaxaca state, southwestern Mexico.
It preserves fossils dating back to the Pennsylvanian epoch of the Carboniferous period. [1]