,Start,End
Griesbachian,251.902,251.551
Late Induan,251.551,251.2
Smithian,251.2,249.2
Spathian,249.2,247.2
Aegean,247.2,245.9
Bithynian,245.9,244.6
Late Anisian,244.6,242
Ladinian,242,237
Julian,237,232
Tuvalian,232,227
Lacian,227,220.8333333
Middle Norian,220.8333333,215.56
Alaunian,215.56,212
Sevatian,214.6666667,208.5
Rhaetian,208.5,201.4
Early Hettangian,201.4,200.45
Late Hettangian,200.45,199.5
Sinemurian,199.5,192.9
Pliensbachian,192.9,184.2
Early Toarcian,184.2,181.0333333
Middle Toarcian,181.0333333,177.9666667
Late Toarcian,177.9666667,174.7
Aalenian,174.7,170.9
Bajocian,170.9,168.2
Early Bathonian,168.2,167.2333333
Middle Bathonian,167.2333333,166.2666667
Late Bathonian,166.2666667,165.3
Early Callovian,165.3,163.4
Late Callovian,163.4,161.5
Early Oxfordian,161.5,158.15
Late Oxfordian,158.15,154.8
Early Kimmeridgian,154.8,152
Late Kimmeridgian,152,149.2
Early Tithonian,149.2,147.1
Late Tithonian,147.1,145
Early Berriasian,145,143.2666667
Middle Berriasian,143.2666667,141.5333333
Late Berriasian,141.5333333,139.8
Early Valanginian,139.8,136.2
Late Valanginian,136.2,132.6
Early Hauterivian,132.6,129.185
Late Hauterivian,129.185,125.77
Early Barremian,125.77,123.585
Late Barremian,123.585,121.4
Early Aptian,121.4,117.2
Late Aptian,117.2,113
Early Albian,113,108.8333333
Middle Albian,108.8333333,104.6666667
Late Albian,104.6666667,100.5
Early Cenomanian,100.5,98.3
Middle Cenomanian,98.3,96.1
Late Cenomanian,96.1,93.9
Early Turonian,93.9,92.53333333
Middle Turonian,92.53333333,91.16666667
Late Turonian,91.16666667,89.8
Coniacian,89.8,86.3
Early Santonian,86.3,84.95
Late Santonian,84.95,83.6
Early Campanian,83.6,79.76666667
Middle Campanian,79.76666667,75.93333333
Late Campanian,75.93333333,72.1
Early Maastrichtian,72.1,69.05
Late Maastrichtian,69.05,66