Huayquerías Formation
The Huayquerías Formation () is a Late Miocene fossiliferous geological formation of the Frontal Cordillera and Cuyo Basin of Argentina. The formation crops out in the central Mendoza Province.

The formation, with a maximum thickness of , comprises reddish mudstones with thin beds of tuffs and sandstones, deposited in a fluvial, environment. The tuff in the formation is dated to 5.84 ± 0.41 Ma, placing it in the Huayquerian SALMA, the age named after the formation by Kraglievitch in 1934.

The formation has provided fossils of the procyonid "Cyonasua pascuali" and the litoptern "Huayqueriana cristata", named after the formation.
Q76267
Late Miocene
TIME
None
fossiliferous
UNK
Q736917
geological formation
Concept
Q5788385
Frontal Cordillera
LOC
Q23579836
Cuyo Basin
UNK
Q414
Argentina
LOC
Q531953
crops out
Concept
Q44797
Mendoza Province
LOC
Q6642424
mudstone
Concept
Q484924
tuff
Concept
Q13085
sandstone
Concept
Q1434465
fluvial
LOC
Q1994702
environment
UNK
Q5903973
Huayquerian
TIME
Q5817530
SALMA
Concept
Q147114
procyonid
Concept
Q16941543
Cyonasua pascuali
Concept
Q132153
litoptern
Concept
Q3753522
Huayqueriana cristata
Concept
Q85767612
Huayquerías Formation
UNK
1934-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1934
DATE
+5.84^^http://www.w3.org/2001/XMLSchema#decimal
5.84
NUMBER
+0.41^^http://www.w3.org/2001/XMLSchema#decimal
0.41
NUMBER
instance of