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Glaucolithites glaucolithus
851
Type
Zone
Age range
147.6–147.4
Ma
International Timescale
Late Jurassic
Tithonian
Ammonite Zonation - Boreal
Galbanites okusensis
Glaucolithites glaucolithus
Progalbanites albani
147.60
147.59
147.58
147.57
147.56
147.55
147.54
147.53
147.52
147.51
147.50
147.49
147.48
147.47
147.46
147.45
147.44
147.43
147.42
147.41
147.40
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