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Argentina
Biostratigraphy
1
Carboniferous
Carboniferous-Permian boundary
1
Geochronology
1
Invertebrata
1
La Rioja
1
La Rioja [Argentina]
1
Paleopalynology
1
Permian
1
Raistrickia
South America
Vittatina
1
age determination
1
biostratigraphy
1
biozonation
1
fossil assemblage
1
geochronology
1
invertebrate
1
marine environment
1
palynology
1
stratotype
1
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1