,start_time,end_time
Tithonian,152.1,145
Kimmeridgian,157.3,152.1
Oxfordian,163.5,157.3
Callovian,166.1,163.5
Bathonian,168.3,166.1
Bajocian,170.3,168.3
Aalenian,174.1,170.3
Toarcian,182.7,174.1
Pliensbachian,190.8,182.7
Sinemurian,199.3,190.8
Hettangian,201.3,199.3