campanian-danian
31Paleozoic — era 542   251 million years ago Key events in the Paleozoic view • edit …
32Precambrian — For the album by German band The Ocean, see Precambrian (album). Precambrian Period 4567.17–542 million years ago …
33Younger Dryas — Three temperature records, the GRIP sequence (red) showing the Younger Dryas event at around 11.0 ka BP. The vertical axis shows δ18O, which is a temperature proxy showing the water molecule isotopic composition of 18O in an ice core …
34Mesoproterozoic — era 1600   1000 million years ago Key events in the Mesoproterozoic view • edit …
35Cryogenian — Period 850–630 million years ago …
36Mesoarchean — The Mesoarchean (  /ˌmiːz …
37Neoarchean — The Neoarchean (  /ˌniː …
38Middle Jurassic — System Series Stage Age (Ma) Cretaceous Lower Berriasian younger Jurassic Upper Tith …
39Orosirian — The Orosirian (  /ˌɒrɵˈ …
40Norian — System Series Stage Age (Ma) Jurassic Lower Hettangian younger Triassic Upper …
