Judithian age

83.6 - 72.1 Ma

The definition of this interval in the timescale Cretaceous North American Land-Mammal Ages is taken from the following source:

  • J. A. Lillegraven and M. C. McKenna. 1986. Fossil mammals from the "Mesaverde" Formation (Late Cretaceous, Judithian) of the Bighorn and Wind River basins, Wyoming, with definitions of Late Cretaceous North American Land-Mammal "Ages". American Museum Novitates 2840:1-68 view

There are intervals in 5 timescales which overlap this one. show

This interval is used in the definition of 57 collections

A total of 6995 collections with 36674 occurrences lie within this time span

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International Chronostratigraphic TimescaleCretaceous North American Land-Mammal Ages
CretaceousLate CretaceousMaastrichtianLancian/Edmontonian66
CampanianJudithian/Aquilan72.1
Santonian83.6
Coniacian86.3
Turonian89.8
Cenomanian93.9
Early CretaceousAlbian100.5
Aptian113
Barremian121.4
Hauterivian125.77
Valanginian132.6
Berriasian139.8
145