Río Seco de la Quebrada Formation
The Río Seco de la Quebrada Formation is a Triassic geological formation in Mendoza Province, Argentina. Fossils of cynodonts such as "Cynognathus, Diademodon," and "Pascualgnathus" have been found in this formation, along with dicynodonts such as "Vinceria" and "Acratophorus". Based on biostratigraphy, the Río Seco de la Quebrada Formation is considered to have formed during the Anisian stage, as it shares fauna with the upper subzones of the "Cynognathus" Assemblage Zone in South Africa. However, radiometric dating controversially argues that it was deposited during the early Carnian stage, 10 million years younger than expected otherwise.
Q47158
Triassic
LOC
Q736917
geological formation
Concept
Q44797
Mendoza Province
LOC
Q414
Argentina
LOC
Q131801
cynodonts
Concept
Q310938
Cynognathus
Concept
Q332891
Diademodon
Concept
Q7141870
Pascualgnathus
Concept
Q131682
dicynodonts
Concept
Q7932280
Vinceria
Concept
Q104888715
Acratophorus
UNK
Q864826
biostratigraphy
Concept
Q549024
Anisian
TIME
Q3438772
"Cynognathus" Assemblage Zone
LOC
Q258
South Africa
LOC
Q214753
radiometric dating
Concept
Q911899
Carnian
TIME
Q86756440
Río Seco de la Quebrada Formation
UNK
Q86756440
Río Seco de la Quebrada Formation
UNK
+10^^http://www.w3.org/2001/XMLSchema#decimal
10
NUMBER
country