Lexicon
Intervals
Macrostrat
Search
Polygnathus ensensis
612
Type
Zone
Age range
388–387.95
Ma
International Timescale
Middle Devonian
Givetian
Eifelian
Conodont Zonation
Polygnathus hemiansatus
Polygnathus ensensis
Tortodus knockelianus knockelianus
388.002
388.000
387.998
387.996
387.994
387.992
387.990
387.988
387.986
387.984
387.982
387.980
387.978
387.976
387.974
387.972
387.970
387.968
387.966
387.964
387.962
387.960
387.958
387.956
387.954
387.952
387.950
387.948
Details and map
View on map
View in Sift