The Ysidro Formation is a geologic formation in Baja California state, northwestern Mexico.

Ysidro Formation
Stratigraphic range: Miocene
TypeGeologic formation
OverliesBermejo Formation
Thickness500–1,500 feet (150–460 m)
Location
RegionBaja California
CountryMexico

It preserves fossils dating back to the Miocene epoch of the Neogene period.

See also edit

External links edit

  • Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.