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Biostratigraphy
Cretaceous
biostratigraphy
Argentina
22
Ammonites
16
Neuquen Basin
16
ammonite
14
Ammonoidea
12
Hauterivian
12
Lower Cretaceous
10
Neuquén Basin
8
South America
8
nanofossil
8
Calcareous nannofossils
6
Andes
4
Foraminifera
4
Lower Hauterivian
4
Lower cretaceous
4
Maastrichtian
4
Mendoza
4
Neuquén basin
4
Olcostephanidae
4
Ostracoda
4
Palynomorphs
4
Spitidiscus
4
Tethys
4
geochronology
4
lithostratigraphy
4
morphology
4
paleontology
4
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