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Argentina
2
Chondrichthyes
Patagonia
2
South America
Aves
1
Chubut
1
Cretaceous-Tertiary boundary
1
Cretaceous/Paleogene boundary
1
Mass extinction
1
Miocene
1
Mollusca
1
Neuquen Basin
1
Ostreidae
1
Spheniscidae
1
Sphenisciformes
1
Tsunami
1
Vertebrata
1
Western Hemisphere
1
World
1
abundance
1
fossil
1
fossil record
1
mass extinction
1
meteorite
1
new record
1
sandstone
1
seabird
1
skeletal remains
1
storm deposit
1
taxonomy
1
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1
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2