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Mortoniceras fallax
899
Type
Zone
Age range
104.1–101.7
Ma
International Timescale
Early Cretaceous
Albian
Ammonite Zonation - Boreal
Mortoniceras rostratum
Mortoniceras fallax
Mortoniceras inflatum
104.2
104.1
104.0
103.9
103.8
103.7
103.6
103.5
103.4
103.3
103.2
103.1
103.0
102.9
102.8
102.7
102.6
102.5
102.4
102.3
102.2
102.1
102.0
101.9
101.8
101.7
101.6
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