Río Loro Formation
The Río Loro Formation is a geological formation of the Sierras Pampeanas in Tucumán Province Argentina whose strata date back to the Late Paleocene of the Paleogene, or Riochican in the SALMA classification.

The formation has been deposited in a meandering fluvial environment and has a maximum noted thickness of .

The formation has provided fossils of several mammals and reptiles. The crocodylian genus "Lorosuchus" and mammal species "Eoastrapostylops riolorense" were named after the formation which is correlated with the Mealla Formation of the Salta Basin to the northwest of Tucumán Province.
Q736917
formation
Concept
Q1425938
Sierras Pampeanas
LOC
Q44829
Tucumán Province
LOC
Q414
Argentina
LOC
Q508587
Late Paleocene
TIME
Q55810
Paleogene
LOC
Q7335394
Riochican
TIME
Q5817530
SALMA
Concept
Q1434465
fluvial
LOC
Q1994702
environment
UNK
Q3281027
Lorosuchus
Concept
None
Eoastrapostylops riolorense
UNK
Q96392444
Mealla Formation
UNK
Q23582908
Salta Basin
LOC
Q96403281
Río Loro Formation
UNK
country
country
instance of