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The standard stratigraphic nomenclature is a chronostratigraphic system based on palaeontological intervals of time defined by recognised fossil assemblages (biostratigraphy). The aim of chronostratigraphy is to give a meaningful age date to these fossil assemblage intervals and interfaces.
In addition to publishing paper and document (PDF) versions of the International Stratigraphic Chart, the ICS also provides a machine-readable version of the chart formulated using the Web Ontology Language (OWL) and, in particular, Time Ontology in OWL. The ICS' chart web page also provides an interactive version of the chart, based on the OWL ...
In the stratigraphy sub-discipline of geology, a Global Standard Stratigraphic Age, abbreviated GSSA, is a chronological reference point and criterion in the geologic record used to define the boundaries (an internationally sanctioned benchmark point) between different geological periods, epochs or ages on the overall geologic time scale in a chronostratigraphically useful rock layer.
Archived from the original on 2023-11-30. "GSSPs and Continental drift 3D views". ghkclass.net. Archived from the original on 2023-12-08. "Geotime chart displaying geologic time periods compared to the fossil record – Deals with chronology and classifications for laymen (not GSSPs)". rocksandminerals.com. Archived from the original on 2023-12-07.
Stratigraphic chart of the Paleogene, at the website of Norges Network of offshore records of geology and stratigraphy "Base of the Priabonian Stage at Alano, Italy". timescalefoundation.org. Archived from the original on 2024-03-01. "GSSP Table - Cenozoic Era". Archived from the original on 2023-01-24. "Priabonian". Subcommission on Ordovician ...
The geologic time scale is a way of representing deep time based on events that have occurred throughout Earth's history, a time span of about 4.54 ± 0.05 Ga (4.54 billion years). [3]
Subdivision of the Phanerozoic according to the ICS, as of 2023. [1] Vertical axis scale: Millions of years ago. Template documentation. Phanerozoic eon divisions ...
In chronostratigraphy, a stage is a succession of rock strata laid down in a single age on the geologic timescale, which usually represents millions of years of deposition.A given stage of rock and the corresponding age of time will by convention have the same name, and the same boundaries.