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Intervals
Macrostrat
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Metapolygnathus nodosus
727
Type
Zone
Age range
231.4–229.5
Ma
International Timescale
Late Triassic
Carnian
Conodont Zonation
Metapolygnathus primitius
Metapolygnathus nodosus
Metapolygnathus carpathicus
231.4
231.3
231.2
231.1
231.0
230.9
230.8
230.7
230.6
230.5
230.4
230.3
230.2
230.1
230.0
229.9
229.8
229.7
229.6
229.5
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