priabonian
41Mesoarchean — The Mesoarchean (  /ˌmiːz …
42Neoarchean — The Neoarchean (  /ˌniː …
43Middle Jurassic — System Series Stage Age (Ma) Cretaceous Lower Berriasian younger Jurassic Upper Tith …
44Orosirian — The Orosirian (  /ˌɒrɵˈ …
45Norian — System Series Stage Age (Ma) Jurassic Lower Hettangian younger Triassic Upper …
46Piacenzian — System Series Stage Age (Ma) Quaternary Pleistocene Gelasian younger Neogene Pliocene …
47Messinian — System Series Stage Age (Ma) Quaternary Pleistocene Gelasian younger Neogene Pliocene …
48Maastrichtian — System Series Stage Age (Ma) Paleogene Paleocene Danian younger Cretaceous Upper …
49Middle Pleistocene — Subdivisions of the Quaternary Period System Series Stage Age (Ma) Quaternary Holocene 0–0.0117 Pleistocene Tarantian (Upper) 0.0117–0.126 …
50Coniacian — System Series Stage Age (Ma) Paleogene Paleocene Danian younger Cretaceous Upper …
