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Argentina
2
Patagonia
2
biostratigraphy
2
fossil assemblage
Anura
1
Chubut
1
Cretaceous
1
Cretaceous-Paleogene boundary
1
Dinophyceae
1
Early eocene
1
Eocene
1
Geochronology
1
Hexapoda
1
Huitrera formation
1
Nahuel Huapi Lake
1
Neuquén
1
Palaeogene
1
Paleobotany
1
Paleocene-Eocene boundary
1
Pipidae
1
age determination
1
argon isotope
1
biotite
1
climate
1
climate variation
1
depositional environment
1
dinocysts
1
dinoflagellate cyst
1
frog
1
geochronology
1
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1
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2