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Bartonian
| Bartonian | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chronology | |||||||||||||
| |||||||||||||
| Formerly part of | Tertiary Period/System | ||||||||||||
| Etymology | |||||||||||||
| Name formality | Formal | ||||||||||||
| Usage information | |||||||||||||
| Celestial body | Earth | ||||||||||||
| Regional usage | Global (ICS) | ||||||||||||
| Time scale(s) used | ICS Time Scale | ||||||||||||
| Definition | |||||||||||||
| Chronological unit | Age | ||||||||||||
| Stratigraphic unit | Stage | ||||||||||||
| Time span formality | Formal | ||||||||||||
| Lower boundary definition | Not formally defined | ||||||||||||
| Lower boundary definition candidates | Calcareous nannofossil near LAD of the Haptophyte Reticulofenestra reticulata | ||||||||||||
| Lower boundary GSSP candidate section(s) | Contessa highway section, Gubbio, Central Apennines, Italy | ||||||||||||
| Upper boundary definition | LAD of the large acarininids and the Foraminiferan Morozovelloides crassatus | ||||||||||||
| Upper boundary GSSP | Alano section, Piave river, Venetian Prealps, Belluno, Italy 45°54′51″N 11°55′05″E / 45.9141°N 11.9180°E | ||||||||||||
| Upper GSSP ratified | February 2020[3] | ||||||||||||
The Bartonian is, in the International Commission on Stratigraphy's (ICS) geologic time scale, a stage or age in the middle of the Eocene Epoch or Series. The Bartonian Age spans the time between 41.03 and 37.71 Ma. It is preceded by the Lutetian and is followed by the Priabonian Age.[4]
- ^ Zachos, J. C.; Kump, L. R. (2005). "Carbon cycle feedbacks and the initiation of Antarctic glaciation in the earliest Oligocene". Global and Planetary Change. 47 (1): 51–66. Bibcode:2005GPC....47...51Z. doi:10.1016/j.gloplacha.2005.01.001.
- ^ "International Chronostratigraphic Chart" (PDF). International Commission on Stratigraphy. September 2023. Retrieved 16 December 2024.
- ^ Agnini, Claudia; Backman, Jan; Boscolo-Galazzo, Flavia; Condon, Daniel; Fornaciari, Eliana; Galeotti, Simone; Giusberti, Luca; Grandesso, Paolo; Lanci, Luca; Luciani, Valeria; Monechi, Simonetta; Muttoni, Giovanni; Pälike, Heiko; Pampaloni, Maria; Papazzoni, Cesare; Pearson, Paul; Pignatti, Johannes; Silva, Isabella; Raffi, Isabella; Rio, Domenico; Rook, Lorenzo; Sahy, Diana; Spofforth, David; Stefani, Cristina; Wade, Bridget (12 August 2020). "Proposal for the Global Boundary Stratotype Section and Point (GSSP) for the Priabonian Stage (Eocene) at the Alano section (Italy)". Episodes. 44 (2): 151–173. doi:10.18814/epiiugs/2020/020074. hdl:2158/1209925.
- ^ International Commission on Stratigraphy 2017
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