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Antracología (35) |
Corte longitudinal radial (35) |
Corte longitudinal tangencial (34) |
Corte transversal (33) |
Valle de Ambato (19) |
Nor Patagonia (6) |
Nor-Patagonia (5) |
Nor-patagonia (4) |
Chañar (2) |
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