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Argentina
La Rioja
La Rioja [Argentina]
4
Permian
4
South America
Vittatina
4
biostratigraphy
4
biozonation
palynology
4
Biostratigraphy
2
Brazil
2
Carboniferous
2
Carboniferous-Permian boundary
2
Cordaitales
2
Geochronology
2
Invertebrata
2
La Veteada Formation
2
Lueckisporites
2
Lunatisporites
2
Marsupipollenites
2
Paleopalynology
2
Pollen grains
2
Potonieisporites
2
Protohaploxypinus
2
Raistrickia
2
Upper Permian
2
Uruguay
2
Weylandites
2
age determination
2
fossil assemblage
2
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1
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2
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3
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4JOUR