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Streptognathodus simplex-Streptognathodus bellus
667
Type
Zone
Age range
301–300
Ma
International Timescale
Pennsylvanian
Gzhelian
Conodont Zonation
Streptognathodus wabaunsensis
Streptognathodus simplex-Streptognathodus bellus
Streptognathodus virgilicus
301.0
300.9
300.9
300.9
300.8
300.8
300.7
300.6
300.6
300.6
300.5
300.4
300.4
300.4
300.3
300.3
300.2
300.1
300.1
300.1
300.0
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