1.11
2023-07-15
Updated with the latest changes to the international geologic time scale:
• Includes the newly ratified GSSP (golden spike) at the base of the Langhian Stage of the Miocene.
• Includes the new age for the Burdigalian / Langhian stage boundary
• Added several informal units plus the order of North American stages and series for the Ordovician, Silurian, Mississippian, and Pennsylvanian
1.10
2023-04-08
Updated with the latest changes to the international geologic time scale:
• Includes the newly ratified GSSP (golden spike) at the base of the Barremian Stage of the Cretaceous.
• Includes the new age for the Hauterivian / Barremian stage boundary
1.9
2023-03-10
• Added many regional stages, especially from Italy, the Pleistocene, and North America
• Searchable database now includes 178 formal chronostratigraphic units and 734 informal and regional units
• Bug fixes
1.8
2023-01-22
Updated with the latest changes to the international geologic time scale:
• Includes the newly ratified GSSPs (golden spikes) at base of Campanian (Cretaceous) Stage.
• Updates the ages of all Jurassic stages.
• Includes newest date for base of Hadean Eon.
1.7
2022-10-22
• Added New Zealand regional time scale
• Updated for iOS 16
1.6
2022-02-25
Updated with the latest changes to the international geologic time scale:
• Includes the newly ratified GSSP for the base of the Artinskian Stage
• Includes the newest dates for base of the Aptian Stage and the Fortunian Stage (also the Cambrian, Paleozoic, and Phanerozoic)
1.5
2021-12-02
Updated with the latest changes to the international geologic time scale:
• Includes the newly ratified subseries for the Miocene and Pliocene series (visible through the search).
• Added the previously ratified subseries for the Pleistocene and Holocene series (visible through the search).
1.4
2021-08-15
Updated with the latest changes to the international geologic time scale:
• Includes the newly ratified GSSPs (golden spikes) at base of Priabonian (Eocene) and Hauterivian (Cretaceous) stages.
• Adds the newest ages for the bases of the Roadian, Wordian, Capitanian, and Wuchiapingian stages (Permian).
• Show the updated colors for the Pennsylvanian, Pleistocene, and Holocene.
1.3
2021-07-13
• Added golden spikes (GSSPs) for the Coniacian and Kimmeridgian Stages, reflecting the most recent changes to the geologic time scale
1.2.1
2020-07-23
• Updated date of the Bartonian/Priabonian Stage boundary
• Added GSSP (golden spike) for the base of the Priabonian Stage
1.2
2020-07-01
• Expanded the list of searchable regional and formerly used stages, as well as Cretaceous land-animal (land-mammal) ages.
• Now provides references for additional resources on geological time scales.
1.1
2020-04-09
Lots of additions to this version, making DeepTime your go-to source for geologic time
• Almost 500 regional series and stages, informal units, land mammal ages, and formerly used units have been added, along with their equivalents in modern stratigraphic usage.
• Added the definitions of all the GSSPs (golden spikes)
• Use a long press on the time scale to copy the name of a stratigraphic unit
• Other user-interface improvements