Mexcala Formation

The Mexcala Formation is a Late Cretaceous (late Turonian to late Maastrichtian) geologic formation in Guerrero state, southern Mexico.

Fossil content
Fossil ornithopod tracks assigned to Hadrosauridae indet. and sauropod tracks have been reported from the formation.

Other fossils from the formation include:

Ammonites

 * Barroisiceras (Texanites) dentatocarinatum
 * Coilopoceras colleti
 * C. requienianum
 * Forresteria (Forresteria) alluaudi
 * Peroniceras aff. tricarinatum
 * P. cf. subtricarinatum
 * Pseudotissotia galliennei
 * Barroisiceras cf. alstadenense
 * Barroisiceras sp.
 * Peroniceras sp.