Lexicon
Intervals
Macrostrat
Search
Scaphites preventricosus
938
Type
Zone
Age range
89.87–89.77
Ma
International Timescale
Late Cretaceous
Coniacian
Turonian
Ammonite Zonation - Western Interior
Scaphites ventricosus
Scaphites preventricosus
Scaphites mariasensis
89.87
89.86
89.86
89.86
89.85
89.84
89.84
89.83
89.83
89.83
89.82
89.81
89.81
89.81
89.80
89.80
89.79
89.78
89.78
89.78
89.77
Details and map
View on map
View in Sift
