Priabonian
The Priabonian is, in the ICS's geologic timescale, the latest age or the upper stage of the Eocene Epoch or Series. It spans the time between 37.71 and 33.9 Ma. The Priabonian is preceded by the Bartonian and is followed by the Rupelian, the lowest stage of the Oligocene.
| Priabonian | |||||||||||||
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| Chronology | |||||||||||||
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| 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 | LAD of the large acarininids and the Foraminiferan Morozovelloides crassatus | ||||||||||||
| Lower boundary GSSP | Alano section, Piave river, Venetian Prealps, Belluno, Italy 45.9141°N 11.9180°E | ||||||||||||
| Lower GSSP ratified | February 2020 | ||||||||||||
| Upper boundary definition | LAD of Planktonic Foraminifers Hantkenina and Cribrohantkenina | ||||||||||||
| Upper boundary GSSP | Massignano quarry section, Massignano, Ancona, Italy 43.5328°N 13.6011°E | ||||||||||||
| Upper GSSP ratified | 1992 | ||||||||||||
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