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https://purl.org/becyt/ford/1
4
https://purl.org/becyt/ford/1.5
4
ANTARCTICA
2
CERRO NEGRO FORMATION
2
CYATHEALES
2
TREE FERNS
2
https://purl.org/becyt/ford/1.6
2
ANATOMY
1
Antarctica
1
Aptian
1
BYERS
1
CIBOTIACEAE
1
CRETACEOUS
1
CYATHEACEAE
1
Cerro Negro Formation
1
Cyatheales
1
FOSSIL
1
FOSSILS
1
LOWER CRETACEOUS
1
Livingston Island
1
MOSSES
1
PALEOBOTANY
1
South Shetland Islands
1
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