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Sciponoceras gracile (Euomphaloceras septemseriatum)
921
Type
Zone
Age range
94.57–94.39
Ma
International Timescale
Late Cretaceous
Cenomanian
Ammonite Zonation - Western Interior
Burroceras clydense
Sciponoceras gracile (Euomphaloceras septemseriatum)
Sciponoceras gracile (Vasoceras diartianum)
94.57
94.56
94.55
94.54
94.53
94.52
94.51
94.50
94.49
94.48
94.47
94.46
94.45
94.44
94.43
94.42
94.41
94.40
94.39
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