Export KOS Resources

A collection of exportable Knowledge Organization System resources grouped by type.

Data Standards
Darwin Core

Darwin Core is a glossary of terms (in other contexts these might be called properties, elements, fields, columns, attributes, or concepts) intended to facilitate the sharing of information about biological diversity by providing identifiers, labels, and definitions. Darwin Core is primarily based on taxa, their occurrence in nature as documented by observations, specimens, samples, and related information.

Citation: Darwin Core Maintenance Group. 2021. List of Darwin Core terms. Biodiversity Information Standards (TDWG). http://rs.tdwg.org/dwc/doc/list/

Download
Mineralogical Collections Extension to Darwin Core

The Mineralogy Extension is an enchancement to the Darwin Core standard that extends its current scope to include mineralogical collections.

Citation: Pending

Download
Chronometric Age Extension to Darwin Core

The Chronometric Age extension is a standard vocabulary maintained by the Darwin Core Maintenance Interest Group. It includes a glossary of terms (in other contexts these might be called properties, elements, fields, columns, attributes, or concepts) intended to facilitate the sharing of information about chronometric ages and the techniques used to determine them by providing identifiers, labels, and definitions.

Citation: Brenskelle L, Davis E, Wieczorek J, Lefebvre M, Wallis N, Emery K, Guralnick R (in prep) It’s Time For Better Reporting of Absolute Age In Species Occurrence Databases.

Download
Vocabularies (Value Domains)
Constituent Part Roles

Used to categorize kinds of particles that are the constituents of a compound material. Designed for populating the ConstituentPart/role property in GeoSciML CompoundMaterialDescription elements.

Source: CGI Geoscience Terminology Working Group

http://resource.geosciml.org/classifier/cgi/compoundmaterialconstituentpartrole

Download
Modes of Occurrence

Mode of occurrence of geological units and samples (eg: dyke, bed, phenocryst).

Source: Geoscience Australia

https://vocabs.ga.gov.au/object?uri=https%3A//pid.geoscience.gov.au/def/voc/ga/ModesOfOccurence

Download
Proportion Terms

This vocabulary provides terms that may be used to qualitatively express abundance of composition parts in a geologic unit or earth material description. Quantity that specifies the fraction of the geologic unit composed of the compound material.

Source: CGI Geoscience Terminology Working Group

http://resource.geosciml.org/classifier/cgi/proportionterm

Download
Statisitical Uncertainty Type

The type of statistical uncertainty for rock property measurements (e.g. 1 sigma, 2 sigma, 99 percent confidence, unknown).

Source: Geoscience Australia

https://pid.geoscience.gov.au/def/voc/ga/StatisticalUncertaintyTypes

Download
Geological Sampling Feature Types

This vocabulary lists types of geological features relevant to the duties of the Geological Survey of Queensland. It is automatically derived from GSQ's Geologic Features Ontology (https://linked.data.gov.au/def/geofeatures)

Source: Geological Survey of Queensland (GSQ) Vocabulary System

https://pid.geoscience.gov.au/def/voc/ga/EntityTypeOrFeature

Download
Constituent Part Types

A top-level categorization scheme for expressing the nature of a geologic specimen

Source: Aggregated by the MinExt Task Group

Download
Hazard Types

A top-level categorization scheme for grouping hazards

Source: Aggregated by the MinExt Task Group

Download
Mineralogical Analysis Protocols

Subset of terms relevant to mineralogical analysis derived from the Analytical methods for geochemistry and cosmochemistry vocabulary

Source: Astromaterials Data System

https://vocabs.ardc.edu.au/repository/api/lda/earthchem-georoc/analytical-methods-for-geochemistry-and-cosmochemi/1-0/resource?uri=https://w3id.org/geochem/1.0/analyticalmethod/method

Download
Chronometric Age Dating Techniques

Subset of terms relevant to chronometric age dating analysis derived from the Analytical methods for geochemistry and cosmochemistry vocabulary

Source: Astromaterials Data System

https://vocabs.ardc.edu.au/repository/api/lda/earthchem-georoc/analytical-methods-for-geochemistry-and-cosmochemi/1-0/resource?uri=https://w3id.org/geochem/1.0/analyticalmethod/method

Download
Sample/Specimen Curation Status

The status of a sample or specimen in relation to curation processes (e.g. the recording and organization of items in a collection), both before and after storage/archiving, and with respect to its display or storage location at a specific point in time.

Source: GSWA Vocabularies

https://linked.data.gov.au/def/sample-curation-status

Download
Sample/Specimen Condition

List of terms describing the condition, completeness and risk/hazard profile of individual samples/specimens, including any specific requirements needed for the preservation of the object.

Source: GSWA Vocabularies

https://linked.data.gov.au/def/sample-condition

Download
Geological Event Environments

his scheme specifies concepts used to describe the physical setting within which a GeologicEvent takes place, as defined by the IUGS Commission for Geoscience Information (CGI) Geoscience Terminology Working Group. GeologicEnvironment is construed broadly to include physical settings on the Earth surface specified by climate, tectonics, physiography or geography, and settings in the Earth’s interior specified by pressure, temperature, chemical environment, or tectonics. Environments are places. By extension, this vocabulary includes all concepts in this conceptScheme, as well as concepts in any previous versions of the scheme. Designed for use in the eventEnvironment property in GeoSciML GeologicEvent features.

Source: CGI Geoscience Terminology Working Group

http://resource.geosciml.org/classifierscheme/cgi/2016.01/eventenvironment

Download
Lusters

The reflection of light from the surface of a mineral, described by its quality and intensity; the appearance of a mineral in reflected light. Terms such as metallic or resinous refer to general appearance; terms such as bright or dull refer to intensity.

Source: Compiled from Neuendorf, K. K. E, Mehl, J. P. & Jackson, J. A. (eds) 2005. Glossary of geology. 5th Edition. Alexandria: American Geological Institute. Online Access.

Download
Type Status

Terms belonging to the type status vocabulary denote a particular kind of specimen or taxon. The vocabulary encompasses both official terms that are maintained in a nomenclature code by an authoritative body (e.g., ICZN) and alternate derivatives.

Source: ICZN and IMA

Download
Habits

A vocabulary for mineral habits

Source: webmineral.com

https://webmineral.com/help/Habits.shtml

Download
Licenses

Common licenses applied to digital products and assets that can be utilized for dcterms:licenseassociated with the dcterms:license (A legal document giving official permission to do something with the resource).

Source: System Package Data Exchange (SPDX)

Download
Geological Material Name Types

Categorization scheme for names assigned to geological materials at the Constituent Part level.

Download
Specimen Nomenclature Publication Status

Listing of standard nomenclature types (typus) and publication statuses that may characterize fossil, mineral or meteorite samples/specimens held in the Geological Survey of Western Australia's collections. These terms should only be applied to physical items, and are not applicable to derived results or data. This vocabulary includes terms for type specimens as recognized under several international nomenclature codes (see History Note for details). Taxonomic schemes applied to different classes of objects each have their own set of accepted types, and can define the same term differently, so care should be taken to use the correct nomenclature when referring to type specimens; to minimize confusion, individual terms have been labelled with a suffix indicating the relevant code. Note that multiple statuses can apply to a single specimen (e.g. by definition a type specimen will always be described-and-published).

Source: AGLDWG Catalogue

https://linked.data.gov.au/def/sample-nomenclature-publication-status

Download
Vocabulary Registries*

Note: The publication practices of the registries listed above conform to the set of requirements specified in the VocPub Profile - Specification. For example, all terms in a vocabulary must include a unambiguous definition. The list is by no means the only registries in the geosciences domain that conform to this set of requirements, but all do.

Classification Systems
Dana Classification System

The majority of collections in the United States use a modified version of Dana. The origin of the widespread adoption is mostly traditional. There is little arguement regarding the need to migrate US collections to Nickel-Strunz. The problem is mainly a matter of process and procedure. Neither classification system is formally published as a data product and currently there is not a schematic for mapping dana to nickel-strunz.

Citation: Dana JD, Dana ES, Gaines RV (1997) Dana's new mineralogy: The system of mineralogy of James Dwight Dana and Edward Salisbury Dana.

Download
Hey's Mineral Index

The Hey's classification system is not widely adopted. However, it remains an important source of information in mineralogy systematics. In contrast to Dana and Nickel-Strunz, Hey's includes detailed descriptions of major varieties and synonyms with mineral species.

Citation: Clark, A.M. (1993) Hey's Mineral Index : Mineral Species, Varieties and Synonyms. Chapman & Hall, London, England, 852 p.

Download
Nickel-Strunz

Europe-based mineralogy collections utilize some form of the Nickel-Strunz classification system. Since neither system was distributed as a digital data product, most institutions do not use an exact copy of the system. Rather it forms the basis for a customized classification schema. The 9th editiion was the last to be published under the Nickel-Strunz name. It is not managed as part of MinDat as the Mindat-Strunz system (although the sequence of editiion versions was maintained).

Citation: Strunz H, Nickel EH (2001) Strunz Mineralogical Tables, 9th Edition. Berlin and Stuttgart 870 pp.

Download
Strunz-mindat

Strunz-mindat is a mineral classification system based on the Nickel-Strunz 9th Edition (2001), expanded on by Jim Ferraiolo and others, and now extended and maintained by mindat.org. Currently, Strunz-mindat is the only actively maintained, authoritative, and hierarchical mineral classification system.

Citation: Pending

Download
Geologic Timescales
Export All
Land Mammal Ages
  • African Land Mammal Ages
    Temporal Coverage: 65.5 - 0 Ma
    Publisher: GeoSpecimens.org (https://geoapis.io)
    Download
  • Australian Land Mammal Ages
    Temporal Coverage: 35 - 0 Ma
    Publisher: GeoSpecimens.org (https://geoapis.io)
    Download
  • Cretaceous North American Land-Mammal Ages
    Temporal Coverage: 83.6 - 66 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • European Land Mammal Ages
    Temporal Coverage: 66.5 - 0 Ma
    Publisher: GeoSpecimens.org (https://geoapis.io)
    Download
  • Mammal Paleogene Zones
    Temporal Coverage: 59.24 - 23 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Neogene Mammal Ages of China
    Temporal Coverage: 23.04 - 0 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • North American Land Mammal Ages
    Temporal Coverage: 66 - 0 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • North American Mammal Subages/Zones
    Temporal Coverage: 66 - 0 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Paleogene Mammal Ages of Asia
    Temporal Coverage: 59.24 - 23 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • South American Land Mammal Ages
    Temporal Coverage: 66 - 0 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
Regional Timescales
  • Australia Regional Timescale
    Temporal Coverage: 511.5 - 0.99 Ma
    Publisher: https://github.com/xgmachina/DeepTimeKB
    Download
  • Baltoscania Regional Timescale
    Temporal Coverage: 485.37 - 419.2 Ma
    Publisher: https://github.com/xgmachina/DeepTimeKB
    Download
  • Boreal Regional Timescale
    Temporal Coverage: 163.06 - 137.27 Ma
    Publisher: https://github.com/xgmachina/DeepTimeKB
    Download
  • Britain Regional Timescale
    Temporal Coverage: 163.06 - 137.27 Ma
    Publisher: https://github.com/xgmachina/DeepTimeKB
    Download
  • California Regional Timescale
    Temporal Coverage: 62.07 - 0 Ma
    Publisher: https://github.com/xgmachina/DeepTimeKB
    Download
  • Cambrian of Australia
    Temporal Coverage: 511.2 - 486 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Cambrian of Britain
    Temporal Coverage: 538.8 - 486 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Cambrian of China
    Temporal Coverage: 538.8 - 486 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Cambrian of Kazakhstan
    Temporal Coverage: 525.5 - 477 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Cambrian of North America
    Temporal Coverage: 538.8 - 486 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Cambrian of Siberia
    Temporal Coverage: 538.8 - 485 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Cambrian of West Avalonia
    Temporal Coverage: 538.8 - 495 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Carbo-Permian of the Russian Platform
    Temporal Coverage: 358.86 - 251 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Carboniferous of China
    Temporal Coverage: 358.86 - 300 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Carboniferous of North America
    Temporal Coverage: 358.86 - 293 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Carboniferous of Western Europe
    Temporal Coverage: 358.86 - 297 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Cenozoic Subepochs of Southern Europe
    Temporal Coverage: 0.774 - 0 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Cretaceous-Cenozoic of New Zealand
    Temporal Coverage: 143.1 - 0 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Devonian of Czechoslovakia
    Temporal Coverage: 419.62 - 382 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Devonian of Eastern North America
    Temporal Coverage: 419.62 - 358 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Devonian of France
    Temporal Coverage: 419.62 - 358 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Devonian of Germany
    Temporal Coverage: 419.62 - 358 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • East Avalonian Regional Timescale
    Temporal Coverage: 525.5 - 478.6 Ma
    Publisher: https://github.com/xgmachina/DeepTimeKB
    Download
  • European Faunal Units
    Temporal Coverage: 23.04 - 1 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Iberian-Morocco Regional Timescale
    Temporal Coverage: 536.6 - 485.37 Ma
    Publisher: https://github.com/xgmachina/DeepTimeKB
    Download
  • Japan Regional Timescale
    Temporal Coverage: 145.01 - 0.77 Ma
    Publisher: https://github.com/xgmachina/DeepTimeKB
    Download
  • Kazakhstan Regional Timescale
    Temporal Coverage: 525.5 - 482.19 Ma
    Publisher: https://github.com/xgmachina/DeepTimeKB
    Download
  • N-E Siberia Regional Timescale
    Temporal Coverage: 358.94 - 295.5 Ma
    Publisher: https://github.com/xgmachina/DeepTimeKB
    Download
  • New Zealand Regional Timescale
    Temporal Coverage: 541 - 0 Ma
    Publisher: https://github.com/xgmachina/DeepTimeKB
    Download
  • North America Regional Timescale
    Temporal Coverage: 541 - 66.04 Ma
    Publisher: https://github.com/xgmachina/DeepTimeKB
    Download
  • North American Regional
    Temporal Coverage: 850 - 0 Ma
    Publisher: Macrostrat (https://macrostrat.org)
    Download
  • North China Regional Timescale
    Temporal Coverage: 541 - 486.23 Ma
    Publisher: https://github.com/xgmachina/DeepTimeKB
    Download
  • Obsolete Carboniferous Ages of China
    Temporal Coverage: 305.8 - 298 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Ordovician of Australia
    Temporal Coverage: 486.85 - 443 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Ordovician of Britain
    Temporal Coverage: 486.4 - 443 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Ordovician of China
    Temporal Coverage: 486.85 - 443 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Ordovician of Ibero-Bohemia
    Temporal Coverage: 486.85 - 443 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Ordovician of North America
    Temporal Coverage: 488.9 - 443 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Ordovician of the Baltic
    Temporal Coverage: 486.85 - 443 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Permian of China
    Temporal Coverage: 300.1 - 251 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Permian of North America
    Temporal Coverage: 298.9 - 259 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Permian of the Pamirs
    Temporal Coverage: 298.9 - 251 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Permian of the Russian Platform
    Temporal Coverage: 298.9 - 256 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Permian of the Salt Range
    Temporal Coverage: 271.8 - 251 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Permian of Western Europe
    Temporal Coverage: 298.9 - 254 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Permian Subages of Germany
    Temporal Coverage: 266.9 - 251 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Permian-Jurassic of New Zealand
    Temporal Coverage: 288.5 - 143 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Permo-Triassic Subages of Eastern Europe
    Temporal Coverage: 274.4 - 246 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Precambrian of Russia
    Temporal Coverage: 1400 - 538 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Russia Platform Regional Timescale
    Temporal Coverage: 541 - 137.39 Ma
    Publisher: https://github.com/xgmachina/DeepTimeKB
    Download
  • Russian Epochs
    Temporal Coverage: 600 - 0 Ma
    Publisher: Macrostrat (https://macrostrat.org)
    Download
  • Russian Platform Regional Stages
    Temporal Coverage: 360 - 251 Ma
    Publisher: Macrostrat (https://macrostrat.org)
    Download
  • Russian Precambrian Eons
    Temporal Coverage: 4000 - 600 Ma
    Publisher: Macrostrat (https://macrostrat.org)
    Download
  • Russian Precambrian Eras
    Temporal Coverage: 3200 - 600 Ma
    Publisher: Macrostrat (https://macrostrat.org)
    Download
  • Russian Stages
    Temporal Coverage: 538 - 0 Ma
    Publisher: Macrostrat (https://macrostrat.org)
    Download
  • Siberian Regional
    Temporal Coverage: 600 - 297 Ma
    Publisher: Macrostrat (https://macrostrat.org)
    Download
  • Silurian Ages of Europe
    Temporal Coverage: 430.6 - 426 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Silurian of England
    Temporal Coverage: 443.1 - 419 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Silurian of North America
    Temporal Coverage: 443.1 - 419 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Silurian of the Baltic
    Temporal Coverage: 443.1 - 419 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • South China Regional Timescale
    Temporal Coverage: 541 - 145.01 Ma
    Publisher: https://github.com/xgmachina/DeepTimeKB
    Download
  • Tethyan Regional Timescale
    Temporal Coverage: 303.4 - 248.54 Ma
    Publisher: https://github.com/xgmachina/DeepTimeKB
    Download
  • West Europe Regional Timescale
    Temporal Coverage: 541 - 66.04 Ma
    Publisher: https://github.com/xgmachina/DeepTimeKB
    Download
  • Western Europe Regional
    Temporal Coverage: 362 - 274 Ma
    Publisher: Macrostrat (https://macrostrat.org)
    Download
Magnetostratigraphic Units
  • Ammonite Chrons of North America
    Temporal Coverage: 201.4 - 168 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Ammonite Chrons of Northwest Europe
    Temporal Coverage: 201.4 - 168 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Geomagnetic Polarity Chrons
    Temporal Coverage: 171.6 - 0 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Geomagnetic Polarity Timescale From Marine Magnetic Anomalies
    Temporal Coverage: 157.53 - 0 Ma
    Publisher: Christian Heine, PaleoEarthLabs.org
    Download
Biostratigraphic Units
  • Ammonite Zonation - Boreal
    Temporal Coverage: 252 - 97 Ma
    Publisher: Macrostrat (https://macrostrat.org)
    Download
  • Ammonite Zonation - Western Interior
    Temporal Coverage: 100 - 68 Ma
    Publisher: Macrostrat (https://macrostrat.org)
    Download
  • Calcareous Nannoplankton Zones
    Temporal Coverage: 201.25 - 0 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Conodont Zonation
    Temporal Coverage: 485 - 201 Ma
    Publisher: Macrostrat (https://macrostrat.org)
    Download
  • Cretaceous Planktic foraminifer zonations
    Temporal Coverage: 141 - 65 Ma
    Publisher: Macrostrat (https://macrostrat.org)
    Download
  • European Faunal Zones
    Temporal Coverage: 23.04 - 1 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Low Latitude Radiolarian Zonation
    Temporal Coverage: 60 - 0 Ma
    Publisher: Macrostrat (https://macrostrat.org)
    Download
  • Neogene North Pacific Diatom Biochronology
    Temporal Coverage: 24 - 0 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Planktic foraminiferal datums
    Temporal Coverage: 59 - 56 Ma
    Publisher: Macrostrat (https://macrostrat.org)
    Download
  • Planktic Foraminiferal Zones
    Temporal Coverage: 134.9 - 0 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Trilobite Zonation - Laurentia
    Temporal Coverage: 524 - 484 Ma
    Publisher: Macrostrat (https://macrostrat.org)
    Download
Global Timescales
  • Cambrian Epochs
    Temporal Coverage: 538.8 - 486 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Carboniferous Subepochs
    Temporal Coverage: 358.86 - 298 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Cenozoic Subepochs
    Temporal Coverage: 66 - 0 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Cretaceous Subepochs
    Temporal Coverage: 143.1 - 66 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Devonian Subages
    Temporal Coverage: 419.62 - 358 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Geologic Time Scale 2020
    Temporal Coverage: 4567 - 0 Ma
    Publisher: GeoSpecimens.org (https://geoapis.io)
    Download
  • International Chronostratigraphic Timescale
    Temporal Coverage: 4567 - 0 Ma
    Publisher: International Commission on Stratigraphy
    Download
  • International Stages With Holocene
    Temporal Coverage: 538.8 - 0 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
  • Mesozoic Subages
    Temporal Coverage: 251.902 - 66 Ma
    Publisher: Paleobiology Database (https://paleobiodb.org)
    Download
Planetary Timescales
  • Lunar Geologic Timescale
    Temporal Coverage: 4360 - 0 Ma
    Publisher: GeoSpecimens.org (https://geoapis.io)
    Download
  • Martian Geologic Timescale
    Temporal Coverage: 4600 - 0 Ma
    Publisher: GeoSpecimens.org (https://geoapis.io)
    Download
  • Martian Mineralogical Timescale
    Temporal Coverage: 4568 - 0 Ma
    Publisher: GeoSpecimens.org (https://geoapis.io)
    Download
  • Mercurial Geologic Timescale
    Temporal Coverage: 4568 - 0 Ma
    Publisher: GeoSpecimens.org (https://geoapis.io)
    Download
  • Venusian Geologic Timescale
    Temporal Coverage: 4560 - 0 Ma
    Publisher: GeoSpecimens.org (https://geoapis.io)
    Download