Table 1.
A summary of the key fields and search terms for locating chronometry content.
The first column shows the targeted fields within Darwin Core where chronometric data may be reported by providers. The second column provides a list of commonly used terms that are often used when reporting chronometry data.
Table 2.
Summary analysis of the records with basisOfRecord recorded as FossilSpecimens, with the number of unique values found in each targeted Darwin Core field and the number of chronometry-related values found within each field.
Table 3.
The current Chronometric Age extension terms and definitions with notes detailing examples of what is meant by specific field names.
This same information, including notes detailing examples of what is meant by each specific field, can be found at the current published version of the extension on the TDWG website at http://rs.tdwg.org/chrono/version/terms/2021-02-21.htm.
Fig 1.
The conceptual layout of the Chronometric Age extension with data representing different parts of the dating process.
Fig 2.
Exemplar material samples, data assays and outcomes of the three example datasets, with color coding to indicate how the different parts of the dating process correspond with the CAE terms in Table 3 and conceptual elements in Fig 1.
“Oyster” icon by Eucalyp, “Ceramics” icon by Adrien Coquet, “Article” icon created by IconMark, “Volcanic Ash” icon created by Hayashi Fumihiro, “Crystal” icons created by MarkieAnn Packer all from http://www.thenounproject.com.