Cambrian Period
type: Concept
rank: Period
maximum age in millions of years before present: 5.41e+02
minimum age in millions of years before present: 4.869e+02
Source: Geochronology Division
Status: stable
broader: Early Paleozoic
definition: Cambrian Period is the first of the six periods of the Palaeozoic Era. It is preceded by the Ediacaran Period (Neoproterozoic Era) and succeeded by the Ordovician Period (Geologic Time Scale 2020, figs. 2.1, 19.1; https://timescalefoundation.org/).
is in scheme: Geochronology Division
narrower: Cambrian Series 2
narrower: Miaolingian Epoch
narrower: Comley Series
narrower: St David's Series
narrower: Furongian Epoch
narrower: Merioneth Series
narrower: Terreneuvian Epoch
notation: E
link: /v/vocab/gchrnlgy:Division/Division:E
color: #7FA056

Geochronology Rank
definition: Dictionary to constrain ranks of geochronological intervals used in Geochronology/Division (source table DIC_GEOCHRON). E.g. Eon; Era; Period; Epoch; Age.

rank

maximum age in millions of years before present

minimum age in millions of years before present

Description
description: Description may include but is not limited to: an abstract, a table of contents, a graphical representation, or a free-text account of the resource.

Identifier
description: Recommended practice is to identify the resource by means of a string conforming to an identification system. Examples include International Standard Book Number (ISBN), Digital Object Identifier (DOI), and Uniform Resource Name (URN). Persistent identifiers should be provided as HTTP URIs.

Source
description: This property is intended to be used with non-literal values. The described resource may be derived from the related resource in whole or in part. Best practice is to identify the related resource by means of a URI or a string conforming to a formal identification system.

Status

Type

label

seeAlso

has broader
definition: Relates a concept to a concept that is more general in meaning.

definition
definition: A statement or formal explanation of the meaning of a concept.

has exact match
definition: skos:exactMatch is used to link two concepts, indicating a high degree of confidence that the concepts can be used interchangeably across a wide range of information retrieval applications. skos:exactMatch is a transitive property, and is a sub-property of skos:closeMatch.

is in scheme
definition: Relates a resource (for example a concept) to a concept scheme in which it is included.

has narrower
definition: Relates a concept to a concept that is more specific in meaning.

notation
definition: A notation, also known as classification code, is a string of characters such as "T58.5" or "303.4833" used to uniquely identify a concept within the scope of a given concept scheme.

preferred label
definition: The preferred lexical label for a resource, in a given language.

Registry Status Vocabulary
definition: This vocabulary is a re-published and only marginally changed version of the Registry Ontology's (http://epimorphics.com/public/vocabulary/Registry.html) *Status* vocabulary (online in RDF: http://purl.org/linked-data/registry). The only real change to content has been the addition of the term `unstable`. This re-publication has been performed to allow the IRIs of each vocab term (skos:Concept) to resolve to both human-readable and machine-readable forms of content (HTML and RDF), using HTTP content negotiation. Note that just like the original form of this vocabulary, while it is a SKOS vocabulary implemented as a single skos:ConceptScheme, it is also an OWL Ontology and that each *Status* is both a skos:Concept and a reg:Status individual.

link

color

Cambrian Series 2
Status: stable
definition: Cambrian Series 2 is the second of the four epochs of the Cambrian Period. It is preceded by the Terreneuvian Epoch and succeeded by the Miaolingian Epoch (Geologic Time Scale 2020, figs. 2.1, 19.1; https://timescalefoundation.org/).
link: /v/vocab/gchrnlgy:Division/Division:E2
color: #99C078

Miaolingian Epoch
Status: stable
definition: Miaolingian Epoch is the third of the four epochs of the Cambrian Period. It is preceded by Cambrian Series 2 and succeeded by the Furongian Epoch (Geologic Time Scale 2020, figs. 2.1, 19.1; https://timescalefoundation.org/).
link: /v/vocab/gchrnlgy:Division/Division:E3
color: #A6CF86

Comley Series
Status: stable
definition: Comley Series is the first of three series in the British regional Cambrian stratigraphic scheme. It is succeeded by the St David's Series.
link: /v/vocab/gchrnlgy:Division/Division:EC

St David's Series
Status: stable
definition: St David's Series is the second of three series in the British regional Cambrian stratigraphic scheme. It is preceded by the Comley Series and succeeded by the Merioneth Series.
link: /v/vocab/gchrnlgy:Division/Division:ED

Furongian Epoch
Status: stable
definition: Furongian Epoch is the last of the four epochs of the Cambrian Period. It is preceded by the Miaolingian Epoch and succeeded by the Early Ordovician Epoch (Ordovician Period) (Geologic Time Scale 2020, figs. 2.1, 19.1; https://timescalefoundation.org/).
link: /v/vocab/gchrnlgy:Division/Division:EF
color: #B3E095

Merioneth Series
Status: stable
definition: Merioneth Series is the last of three series in the British regional Cambrian stratigraphic scheme. It is preceded by the St David's Series.
link: /v/vocab/gchrnlgy:Division/Division:EM

Terreneuvian Epoch
Status: stable
definition: Terreneuvian Epoch is the first of the four epochs of the Cambrian Period. It is preceded by the Ediacaran Period and succeeded by Cambrian Series 2 (Geologic Time Scale 2020, figs. 2.1, 19.1; https://timescalefoundation.org/).
link: /v/vocab/gchrnlgy:Division/Division:EN
color: #8CB06C

Early Paleozoic
Status: stable
definition: Early Paleozoic is the first of two informal subdivisions of the Paleozoic Era. It includes the Cambrian, Ordovician and Silurian periods of the international standard stratigraphic scheme.
link: /v/vocab/gchrnlgy:Division/Division:RE

Period
Status: stable
definition: Period is a subdivision of an era, e.g. Jurassic Period. The chronostratigraphical equivalent is System.
link: /v/vocab/gchrnlgy:Rank/Rank:PERIOD

Geochronology Division
Status: stable
definition: Divisions of geological time from source table DIC_GEOCHRON. The BGS Geochronology Dataset is based on The Geologic Time Scale 2012 by F M Gradstein, J G Ogg, M Schmitz and G Ogg (2012), with additions. The result is a composite geological time scale that will be updated as improved timescales become available.
link: /v/vocab/gchrnlgy:Division

Concept
definition: An idea or notion; a unit of thought.

stable
definition: An entry that is seen as having a reasonable measure of stability, may be used to mark the full adoption of a previously 'experimental' entry.
link: /v/vocab/defn:reg-statuses/rstatus:stable
color: #2e8c09