dwc/docs/xml/tdwg_dwcterms.xsd

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema 
    version="2021-07-15"
    xmlns:xs="http://www.w3.org/2001/XMLSchema"
    targetNamespace="http://rs.tdwg.org/dwc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:chrono="http://rs.tdwg.org/chrono/terms/"
    xmlns:dwc="http://rs.tdwg.org/dwc/terms/">
    <xs:annotation>
        <xs:documentation xml:lang="en">
            The Generic Darwin Core schema defining all property terms as global elements.
            
            Domain classes are not defined here, but in a separate schema 
            (tdwg_dwc_classes.xsd) with the same namespace. There are two ways in which 
            references to domains can be defined:
            a) through an abstract base term anyXXXTerm, which is derived from the type 
               dwc:anyPropery and which all properties for that domain use as their 
               substitution group. If you refer to dwc:anyXXXTerm in your schema, you 
               will be able to reference any of the terms, but it will be impossible to 
               create a sequence of all terms occurring only once. 
            b) through a group of elements called XXXTerms, which reference properties 
               exactly once as a sequence. This group can be used to refer to all the 
               domain properties only once each. In order to make a property required, 
               you must create your own group referring to the individual dwc terms. If 
               you want to specify every term once at most and in any order, you will 
               also have to refer to the individual dwc term yourself - a limitation of 
               the xs:all model.
        </xs:documentation>
    </xs:annotation>

    <!-- tdwg_basetypes.xsd defines custom data type restrictions such as dateTimeISO,
       which allows dates of the forms YYYY and YYYY-MM. -->
    <xs:include schemaLocation="tdwg_basetypes.xsd"/>
    <xs:import 
       namespace="http://purl.org/dc/terms/" 
       schemaLocation="http://dublincore.org/schemas/xmls/qdc/2008/02/11/dcterms.xsd"/>
    <xs:import 
       namespace="http://purl.org/dc/elements/1.1/" 
       schemaLocation="http://dublincore.org/schemas/xmls/qdc/dc.xsd"/>
    <xs:import 
       namespace="http://www.w3.org/XML/1998/namespace" 
       schemaLocation="http://www.w3.org/2001/03/xml.xsd"/>

    <!-- ANY DWC TERM -->
    <xs:element name="any" abstract="true"/>

    <!-- ANY DWC IDENTIFIER -->
    <xs:element name="anyIdentifier" abstract="true" substitutionGroup="dwc:any"/>
    <xs:group name="IdentifierTerms">
        <xs:annotation>
            <xs:documentation>Group of all Darwin Core class identifier terms as a 
               convenience to construct other schemas</xs:documentation>
        </xs:annotation>
        <xs:sequence>
            <xs:element ref="dwc:occurrenceID" minOccurs="0"/>
            <xs:element ref="dwc:organismID" minOccurs="0"/>
            <xs:element ref="dwc:materialEntityID" minOccurs="0"/>
            <xs:element ref="dwc:materialSampleID" minOccurs="0"/>
            <xs:element ref="dwc:eventID" minOccurs="0"/>
            <xs:element ref="dwc:locationID" minOccurs="0"/>
            <xs:element ref="dwc:geologicalContextID" minOccurs="0"/>
            <xs:element ref="dwc:identificationID" minOccurs="0"/>
            <xs:element ref="dwc:taxonID" minOccurs="0"/>
            <xs:element ref="dwc:measurementID" minOccurs="0"/>
            <xs:element ref="dwc:resourceRelationshipID" minOccurs="0"/>
            <xs:element ref="chrono:chronometricAgeID" minOccurs="0"/>
        </xs:sequence>
    </xs:group>

    <!-- ANY DWC PROPERTY TERM -->
    <xs:element name="anyProperty" abstract="true" substitutionGroup="dwc:any"/>
    <!-- type="dwc:simpleProperty"  -->

    <!-- ANY DWC CLASS TERM -->
    <xs:element name="anyClass" abstract="true" substitutionGroup="dwc:any"/>

    <!-- 
        All TERMS listed BY domain
        Every domain has its own substitutionGroup
    -->
    <!-- RECORD-LEVEL domainless terms -->
    <xs:element name="anyRecordLevelTerm" abstract="true" substitutionGroup="dwc:anyProperty"/>
    <!-- domain properties -->
    <!-- the Dublin Core terms applicable for Darwin Core are defined in the 
      Dublin Core schemas and use this substitution group -->
    <xs:element name="institutionID" substitutionGroup="dwc:anyRecordLevelTerm" type="xs:string"/>
    <xs:element name="collectionID" substitutionGroup="dwc:anyRecordLevelTerm" type="xs:string"/>
    <xs:element name="datasetID" substitutionGroup="dwc:anyRecordLevelTerm" type="xs:string"/>
    <xs:element name="institutionCode" substitutionGroup="dwc:anyRecordLevelTerm" type="xs:string"/>
    <xs:element name="collectionCode" substitutionGroup="dwc:anyRecordLevelTerm" type="xs:string"/>
    <xs:element name="datasetName" substitutionGroup="dwc:anyRecordLevelTerm" type="xs:string"/>
    <xs:element name="ownerInstitutionCode" substitutionGroup="dwc:anyRecordLevelTerm" type="xs:string"/>
    <xs:element name="basisOfRecord" substitutionGroup="dwc:anyRecordLevelTerm" type="xs:string"/>
    <xs:element name="informationWithheld" substitutionGroup="dwc:anyRecordLevelTerm" type="xs:string"/>
    <xs:element name="dataGeneralizations" substitutionGroup="dwc:anyRecordLevelTerm" type="xs:string"/>
    <xs:element name="dynamicProperties" substitutionGroup="dwc:anyRecordLevelTerm" type="xs:string"/>
    <xs:group name="RecordLevelTerms">
        <xs:sequence>
            <xs:element ref="dc:type" minOccurs="0"/>
            <xs:element ref="dcterms:modified" minOccurs="0"/>
            <xs:element ref="dc:language" minOccurs="0"/>
            <xs:element ref="dcterms:license" minOccurs="0"/>
            <xs:element ref="dcterms:rightsHolder" minOccurs="0"/>
            <xs:element ref="dcterms:accessRights" minOccurs="0"/>
            <xs:element ref="dcterms:bibliographicCitation" minOccurs="0"/>
            <xs:element ref="dcterms:references" minOccurs="0"/>
            <xs:element ref="dwc:institutionID" minOccurs="0"/>
            <xs:element ref="dwc:collectionID" minOccurs="0"/>
            <xs:element ref="dwc:datasetID" minOccurs="0"/>
            <xs:element ref="dwc:institutionCode" minOccurs="0"/>
            <xs:element ref="dwc:collectionCode" minOccurs="0"/>
            <xs:element ref="dwc:datasetName" minOccurs="0"/>
            <xs:element ref="dwc:ownerInstitutionCode" minOccurs="0"/>
            <xs:element ref="dwc:basisOfRecord" minOccurs="0"/>
            <xs:element ref="dwc:informationWithheld" minOccurs="0"/>
            <xs:element ref="dwc:dataGeneralizations" minOccurs="0"/>
            <xs:element ref="dwc:dynamicProperties" minOccurs="0"/>
        </xs:sequence>
    </xs:group>

    <!-- OCCURRENCE domain -->
    <xs:element name="anyOccurrenceTerm" abstract="true" substitutionGroup="dwc:anyProperty"/>
    <xs:element name="occurrenceID" type="dwc:nonEmptyString" substitutionGroup="dwc:anyIdentifier"/>
    <!-- domain properties -->
    <xs:element name="catalogNumber" type="xs:string" substitutionGroup="dwc:anyOccurrenceTerm"/>
    <xs:element name="recordNumber" type="xs:string" substitutionGroup="dwc:anyOccurrenceTerm"/>
    <xs:element name="recordedBy" type="xs:string" substitutionGroup="dwc:anyOccurrenceTerm"/>
    <xs:element name="recordedByID" type="xs:string" substitutionGroup="dwc:anyOccurrenceTerm"/>
    <xs:element name="individualCount" type="xs:positiveInteger" substitutionGroup="dwc:anyOccurrenceTerm"/>
    <xs:element name="organismQuantity" type="xs:string" substitutionGroup="dwc:anyOccurrenceTerm"/>
    <xs:element name="organismQuantityType" type="xs:string" substitutionGroup="dwc:anyOccurrenceTerm"/>
    <xs:element name="sex" type="xs:string" substitutionGroup="dwc:anyOccurrenceTerm"/>
    <xs:element name="lifeStage" type="xs:string" substitutionGroup="dwc:anyOccurrenceTerm"/>
    <xs:element name="reproductiveCondition" type="xs:string" substitutionGroup="dwc:anyOccurrenceTerm"/>
    <xs:element name="caste" type="xs:string" substitutionGroup="dwc:anyOccurrenceTerm"/>
    <xs:element name="behavior" type="xs:string" substitutionGroup="dwc:anyOccurrenceTerm"/>
    <xs:element name="vitality" type="xs:string" substitutionGroup="dwc:anyOccurrenceTerm"/>
    <xs:element name="establishmentMeans" type="xs:string" substitutionGroup="dwc:anyOccurrenceTerm"/>
    <xs:element name="degreeOfEstablishment" type="xs:string" substitutionGroup="dwc:anyOccurrenceTerm"/>
    <xs:element name="pathway" type="xs:string" substitutionGroup="dwc:anyOccurrenceTerm"/>
    <xs:element name="georeferenceVerificationStatus" type="xs:string" substitutionGroup="dwc:anyOccurrenceTerm"/>
    <xs:element name="occurrenceStatus" type="xs:string" substitutionGroup="dwc:anyOccurrenceTerm"/>
    <xs:element name="associatedMedia" type="xs:string" substitutionGroup="dwc:anyOccurrenceTerm"/>
    <xs:element name="associatedOccurrences" type="xs:string" substitutionGroup="dwc:anyOccurrenceTerm"/>
    <xs:element name="associatedReferences" type="xs:string" substitutionGroup="dwc:anyOccurrenceTerm"/>
    <xs:element name="associatedTaxa" type="xs:string" substitutionGroup="dwc:anyOccurrenceTerm"/>
    <xs:element name="otherCatalogNumbers" type="xs:string" substitutionGroup="dwc:anyOccurrenceTerm"/>
    <xs:element name="occurrenceRemarks" type="xs:string" substitutionGroup="dwc:anyOccurrenceTerm"/>
    <xs:group name="OccurrenceTerms">
        <xs:sequence>
            <xs:element ref="dwc:catalogNumber" minOccurs="0"/>
            <xs:element ref="dwc:recordNumber" minOccurs="0"/>
            <xs:element ref="dwc:recordedBy" minOccurs="0"/>
            <xs:element ref="dwc:recordedByID" minOccurs="0"/>
            <xs:element ref="dwc:individualCount" minOccurs="0"/>
            <xs:element ref="dwc:organismQuantity" minOccurs="0"/>
            <xs:element ref="dwc:organismQuantityType" minOccurs="0"/>
            <xs:element ref="dwc:sex" minOccurs="0"/>
            <xs:element ref="dwc:lifeStage" minOccurs="0"/>
            <xs:element ref="dwc:reproductiveCondition" minOccurs="0"/>
            <xs:element ref="dwc:caste" minOccurs="0"/>
            <xs:element ref="dwc:behavior" minOccurs="0"/>
            <xs:element ref="dwc:vitality" minOccurs="0"/>
            <xs:element ref="dwc:establishmentMeans" minOccurs="0"/>
            <xs:element ref="dwc:degreeOfEstablishment" minOccurs="0"/>
            <xs:element ref="dwc:pathway" minOccurs="0"/>
            <xs:element ref="dwc:georeferenceVerificationStatus" minOccurs="0"/>
            <xs:element ref="dwc:occurrenceStatus" minOccurs="0"/>
            <xs:element ref="dwc:associatedMedia" minOccurs="0"/>
            <xs:element ref="dwc:associatedOccurrences" minOccurs="0"/>
            <xs:element ref="dwc:associatedReferences" minOccurs="0"/>
            <xs:element ref="dwc:associatedTaxa" minOccurs="0"/>
            <xs:element ref="dwc:otherCatalogNumbers" minOccurs="0"/>
            <xs:element ref="dwc:occurrenceRemarks" minOccurs="0"/>
        </xs:sequence>
    </xs:group>

    <!-- ORGANISM domain -->
    <xs:element name="anyOrganismTerm" abstract="true" substitutionGroup="dwc:anyProperty"/>
    <xs:element name="organismID" type="dwc:nonEmptyString" substitutionGroup="dwc:anyIdentifier"/>
    <!-- domain properties -->
    <xs:element name="organismName" type="xs:string" substitutionGroup="dwc:anyOrganismTerm"/>
    <xs:element name="organismScope" type="xs:string" substitutionGroup="dwc:anyOrganismTerm"/>
    <xs:element name="associatedOrganisms" type="xs:string" substitutionGroup="dwc:anyOrganismTerm"/>
    <xs:element name="previousIdentifications" type="xs:string" substitutionGroup="dwc:anyOrganismTerm"/>
    <xs:element name="organismRemarks" type="xs:string" substitutionGroup="dwc:anyOrganismTerm"/>
    <xs:group name="OrganismTerms">
        <xs:sequence>
            <xs:element ref="dwc:organismName" minOccurs="0"/>
            <xs:element ref="dwc:organismScope" minOccurs="0"/>
            <xs:element ref="dwc:associatedOrganisms" minOccurs="0"/>
            <xs:element ref="dwc:previousIdentifications" minOccurs="0"/>
            <xs:element ref="dwc:organismRemarks" minOccurs="0"/>
        </xs:sequence>
    </xs:group>

    <!-- MaterialEntity domain -->
    <xs:element name="anyMaterialEntityTerm" abstract="true" substitutionGroup="dwc:anyProperty"/>
    <xs:element name="materialEntityID" type="dwc:nonEmptyString" substitutionGroup="dwc:anyIdentifier"/>
    <!-- domain properties -->
    <xs:element name="preparations" type="xs:string" substitutionGroup="dwc:anyMaterialEntityTerm"/>
    <xs:element name="disposition" type="xs:string" substitutionGroup="dwc:anyMaterialEntityTerm"/>
    <xs:element name="verbatimLabel" type="xs:string" substitutionGroup="dwc:anyMaterialEntityTerm"/>
    <xs:element name="associatedSequences" type="xs:string" substitutionGroup="dwc:anyMaterialEntityTerm"/>
    <xs:element name="materialEntityRemarks" type="xs:string" substitutionGroup="dwc:anyMaterialEntityTerm"/>
    <xs:group name="MaterialEntityTerms">
        <xs:sequence>
            <xs:element ref="dwc:preparations" minOccurs="0"/>
            <xs:element ref="dwc:disposition" minOccurs="0"/>
            <xs:element ref="dwc:verbatimLabel" minOccurs="0"/>
            <xs:element ref="dwc:associatedSequences" minOccurs="0"/>
            <xs:element ref="dwc:materialEntityRemarks" minOccurs="0"/>
        </xs:sequence>
    </xs:group>

    <!-- MaterialSample domain -->
    <xs:element name="anyMaterialSampleTerm" abstract="true" substitutionGroup="dwc:anyProperty"/>
    <xs:element name="materialSampleID" type="dwc:nonEmptyString" substitutionGroup="dwc:anyIdentifier"/>
    <!-- domain properties -->

    <!-- EVENT domain -->
    <xs:element name="anyEventTerm" abstract="true" substitutionGroup="dwc:anyProperty"/>
    <xs:element name="eventID" type="dwc:nonEmptyString" substitutionGroup="dwc:anyIdentifier"/>
    <!-- domain properties -->
    <xs:element name="parentEventID" type="xs:string" substitutionGroup="dwc:anyEventTerm"/>
    <xs:element name="eventType" type="xs:string" substitutionGroup="dwc:anyEventTerm"/>
    <xs:element name="fieldNumber" type="xs:string" substitutionGroup="dwc:anyEventTerm"/>
    <xs:element name="eventDate" type="dwc:dateTimeISO" substitutionGroup="dwc:anyEventTerm"/>
    <xs:element name="eventTime" type="xs:time" substitutionGroup="dwc:anyEventTerm"/>
    <xs:element name="startDayOfYear" type="dwc:dayOfYearDataType" substitutionGroup="dwc:anyEventTerm"/>
    <xs:element name="endDayOfYear" type="dwc:dayOfYearDataType" substitutionGroup="dwc:anyEventTerm"/>
    <xs:element name="year" type="xs:gYear" substitutionGroup="dwc:anyEventTerm"/>
    <xs:element name="month" type="xs:gMonth" substitutionGroup="dwc:anyEventTerm"/>
    <xs:element name="day" type="xs:gDay" substitutionGroup="dwc:anyEventTerm"/>
    <xs:element name="verbatimEventDate" type="xs:string" substitutionGroup="dwc:anyEventTerm"/>
    <xs:element name="habitat" type="xs:string" substitutionGroup="dwc:anyEventTerm"/>
    <xs:element name="samplingProtocol" type="xs:string" substitutionGroup="dwc:anyEventTerm"/>
    <xs:element name="sampleSizeValue" type="xs:string" substitutionGroup="dwc:anyEventTerm"/>
    <xs:element name="sampleSizeUnit" type="xs:string" substitutionGroup="dwc:anyEventTerm"/>
    <xs:element name="samplingEffort" type="xs:string" substitutionGroup="dwc:anyEventTerm"/>
    <xs:element name="fieldNotes" type="xs:string" substitutionGroup="dwc:anyEventTerm"/>
    <xs:element name="eventRemarks" type="xs:string" substitutionGroup="dwc:anyEventTerm"/>
    <xs:group name="EventTerms">
        <xs:sequence>
            <xs:element ref="dwc:parentEventID" minOccurs="0"/>
            <xs:element ref="dwc:eventType" minOccurs="0"/>
            <xs:element ref="dwc:fieldNumber" minOccurs="0"/>
            <xs:element ref="dwc:eventDate" minOccurs="0"/>
            <xs:element ref="dwc:eventTime" minOccurs="0"/>
            <xs:element ref="dwc:startDayOfYear" minOccurs="0"/>
            <xs:element ref="dwc:endDayOfYear" minOccurs="0"/>
            <xs:element ref="dwc:year" minOccurs="0"/>
            <xs:element ref="dwc:month" minOccurs="0"/>
            <xs:element ref="dwc:day" minOccurs="0"/>
            <xs:element ref="dwc:verbatimEventDate" minOccurs="0"/>
            <xs:element ref="dwc:habitat" minOccurs="0"/>
            <xs:element ref="dwc:samplingProtocol" minOccurs="0"/>
            <xs:element ref="dwc:sampleSizeValue" minOccurs="0"/>
            <xs:element ref="dwc:sampleSizeUnit" minOccurs="0"/>
            <xs:element ref="dwc:samplingEffort" minOccurs="0"/>
            <xs:element ref="dwc:fieldNotes" minOccurs="0"/>
            <xs:element ref="dwc:eventRemarks" minOccurs="0"/>
        </xs:sequence>
    </xs:group>

    <!-- dcterms:LOCATION domain -->
    <xs:element name="anyLocationTerm" abstract="true" substitutionGroup="dwc:anyProperty"/>
    <xs:element name="locationID" type="dwc:nonEmptyString" substitutionGroup="dwc:anyIdentifier"/>
    <!-- domain properties -->
    <xs:element name="higherGeographyID" type="dwc:nonEmptyString" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="higherGeography" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="continent" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="waterBody" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="islandGroup" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="island" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="country" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="countryCode" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="stateProvince" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="county" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="municipality" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="locality" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="verbatimLocality" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="minimumElevationInMeters" type="xs:double" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="maximumElevationInMeters" type="xs:double" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="verbatimElevation" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="verticalDatum" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="minimumDepthInMeters" type="xs:double" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="maximumDepthInMeters" type="xs:double" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="verbatimDepth" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="minimumDistanceAboveSurfaceInMeters" type="xs:double" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="maximumDistanceAboveSurfaceInMeters" type="xs:double" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="locationAccordingTo" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="locationRemarks" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="decimalLatitude" type="dwc:decimalLatitudeDataType" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="decimalLongitude" type="dwc:decimalLongitudeDataType" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="geodeticDatum" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="coordinateUncertaintyInMeters" type="xs:double" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="coordinatePrecision" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="pointRadiusSpatialFit" type="dwc:spatialFitDataType" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="verbatimCoordinates" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="verbatimLatitude" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="verbatimLongitude" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="verbatimCoordinateSystem" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="verbatimSRS" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="footprintWKT" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="footprintSRS" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="footprintSpatialFit" type="dwc:spatialFitDataType" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="georeferencedBy" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="georeferencedDate" type="dwc:dateTimeISO" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="georeferenceProtocol" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="georeferenceSources" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:element name="georeferenceRemarks" type="xs:string" substitutionGroup="dwc:anyLocationTerm"/>
    <xs:group name="LocationTerms">
        <xs:sequence>
            <xs:element ref="dwc:higherGeographyID" minOccurs="0"/>
            <xs:element ref="dwc:higherGeography" minOccurs="0"/>
            <xs:element ref="dwc:continent" minOccurs="0"/>
            <xs:element ref="dwc:waterBody" minOccurs="0"/>
            <xs:element ref="dwc:islandGroup" minOccurs="0"/>
            <xs:element ref="dwc:island" minOccurs="0"/>
            <xs:element ref="dwc:country" minOccurs="0"/>
            <xs:element ref="dwc:countryCode" minOccurs="0"/>
            <xs:element ref="dwc:stateProvince" minOccurs="0"/>
            <xs:element ref="dwc:county" minOccurs="0"/>
            <xs:element ref="dwc:municipality" minOccurs="0"/>
            <xs:element ref="dwc:locality" minOccurs="0"/>
            <xs:element ref="dwc:verbatimLocality" minOccurs="0"/>
            <xs:element ref="dwc:minimumElevationInMeters" minOccurs="0"/>
            <xs:element ref="dwc:maximumElevationInMeters" minOccurs="0"/>
            <xs:element ref="dwc:verbatimElevation" minOccurs="0"/>
            <xs:element ref="dwc:verticalDatum" minOccurs="0"/>
            <xs:element ref="dwc:minimumDepthInMeters" minOccurs="0"/>
            <xs:element ref="dwc:maximumDepthInMeters" minOccurs="0"/>
            <xs:element ref="dwc:verbatimDepth" minOccurs="0"/>
            <xs:element ref="dwc:minimumDistanceAboveSurfaceInMeters" minOccurs="0"/>
            <xs:element ref="dwc:maximumDistanceAboveSurfaceInMeters" minOccurs="0"/>
            <xs:element ref="dwc:locationAccordingTo" minOccurs="0"/>
            <xs:element ref="dwc:locationRemarks" minOccurs="0"/>
            <xs:element ref="dwc:decimalLatitude" minOccurs="0"/>
            <xs:element ref="dwc:decimalLongitude" minOccurs="0"/>
            <xs:element ref="dwc:geodeticDatum" minOccurs="0"/>
            <xs:element ref="dwc:coordinateUncertaintyInMeters" minOccurs="0"/>
            <xs:element ref="dwc:coordinatePrecision" minOccurs="0"/>
            <xs:element ref="dwc:pointRadiusSpatialFit" minOccurs="0"/>
            <xs:element ref="dwc:verbatimCoordinates" minOccurs="0"/>
            <xs:element ref="dwc:verbatimLatitude" minOccurs="0"/>
            <xs:element ref="dwc:verbatimLongitude" minOccurs="0"/>
            <xs:element ref="dwc:verbatimCoordinateSystem" minOccurs="0"/>
            <xs:element ref="dwc:verbatimSRS" minOccurs="0"/>
            <xs:element ref="dwc:footprintWKT" minOccurs="0"/>
            <xs:element ref="dwc:footprintSRS" minOccurs="0"/>
            <xs:element ref="dwc:footprintSpatialFit" minOccurs="0"/>
            <xs:element ref="dwc:georeferencedBy" minOccurs="0"/>
            <xs:element ref="dwc:georeferencedDate" minOccurs="0"/>
            <xs:element ref="dwc:georeferenceProtocol" minOccurs="0"/>
            <xs:element ref="dwc:georeferenceSources" minOccurs="0"/>
            <xs:element ref="dwc:georeferenceRemarks" minOccurs="0"/>
        </xs:sequence>
    </xs:group>

    <!-- GEOLOGICALCONTEXT domain -->
    <xs:element name="anyGeologicalContextTerm" abstract="true" substitutionGroup="dwc:anyProperty"/>
    <xs:element name="geologicalContextID" type="dwc:nonEmptyString" substitutionGroup="dwc:anyIdentifier"/>
    <!-- domain properties -->
    <xs:element name="earliestEonOrLowestEonothem" type="xs:string" substitutionGroup="dwc:anyGeologicalContextTerm"/>
    <xs:element name="latestEonOrHighestEonothem" type="xs:string" substitutionGroup="dwc:anyGeologicalContextTerm"/>
    <xs:element name="earliestEraOrLowestErathem" type="xs:string" substitutionGroup="dwc:anyGeologicalContextTerm"/>
    <xs:element name="latestEraOrHighestErathem" type="xs:string" substitutionGroup="dwc:anyGeologicalContextTerm"/>
    <xs:element name="earliestPeriodOrLowestSystem" type="xs:string" substitutionGroup="dwc:anyGeologicalContextTerm"/>
    <xs:element name="latestPeriodOrHighestSystem" type="xs:string" substitutionGroup="dwc:anyGeologicalContextTerm"/>
    <xs:element name="earliestEpochOrLowestSeries" type="xs:string" substitutionGroup="dwc:anyGeologicalContextTerm"/>
    <xs:element name="latestEpochOrHighestSeries" type="xs:string" substitutionGroup="dwc:anyGeologicalContextTerm"/>
    <xs:element name="earliestAgeOrLowestStage" type="xs:string" substitutionGroup="dwc:anyGeologicalContextTerm"/>
    <xs:element name="latestAgeOrHighestStage" type="xs:string" substitutionGroup="dwc:anyGeologicalContextTerm"/>
    <xs:element name="lowestBiostratigraphicZone" type="xs:string" substitutionGroup="dwc:anyGeologicalContextTerm"/>
    <xs:element name="highestBiostratigraphicZone" type="xs:string" substitutionGroup="dwc:anyGeologicalContextTerm"/>
    <xs:element name="lithostratigraphicTerms" type="xs:string" substitutionGroup="dwc:anyGeologicalContextTerm"/>
    <xs:element name="group" type="xs:string" substitutionGroup="dwc:anyGeologicalContextTerm"/>
    <xs:element name="formation" type="xs:string" substitutionGroup="dwc:anyGeologicalContextTerm"/>
    <xs:element name="member" type="xs:string" substitutionGroup="dwc:anyGeologicalContextTerm"/>
    <xs:element name="bed" type="xs:string" substitutionGroup="dwc:anyGeologicalContextTerm"/>
    <xs:group name="GeologicalContextTerms">
        <xs:sequence>
            <xs:element ref="dwc:earliestEonOrLowestEonothem" minOccurs="0"/>
            <xs:element ref="dwc:latestEonOrHighestEonothem" minOccurs="0"/>
            <xs:element ref="dwc:earliestEraOrLowestErathem" minOccurs="0"/>
            <xs:element ref="dwc:latestEraOrHighestErathem" minOccurs="0"/>
            <xs:element ref="dwc:earliestPeriodOrLowestSystem" minOccurs="0"/>
            <xs:element ref="dwc:latestPeriodOrHighestSystem" minOccurs="0"/>
            <xs:element ref="dwc:earliestEpochOrLowestSeries" minOccurs="0"/>
            <xs:element ref="dwc:latestEpochOrHighestSeries" minOccurs="0"/>
            <xs:element ref="dwc:earliestAgeOrLowestStage" minOccurs="0"/>
            <xs:element ref="dwc:latestAgeOrHighestStage" minOccurs="0"/>
            <xs:element ref="dwc:lowestBiostratigraphicZone" minOccurs="0"/>
            <xs:element ref="dwc:highestBiostratigraphicZone" minOccurs="0"/>
            <xs:element ref="dwc:lithostratigraphicTerms" minOccurs="0"/>
            <xs:element ref="dwc:group" minOccurs="0"/>
            <xs:element ref="dwc:formation" minOccurs="0"/>
            <xs:element ref="dwc:member" minOccurs="0"/>
            <xs:element ref="dwc:bed" minOccurs="0"/>
        </xs:sequence>
    </xs:group>

    <!-- IDENTIFICATION domain -->
    <xs:element name="anyIdentificationTerm" abstract="true" substitutionGroup="dwc:anyProperty"/>
    <xs:element name="identificationID" type="dwc:nonEmptyString" substitutionGroup="dwc:anyIdentifier"/>
    <!-- domain properties -->
    <xs:element name="verbatimIdentification" type="xs:string" substitutionGroup="dwc:anyIdentificationTerm"/>
    <xs:element name="identificationQualifier" type="xs:string" substitutionGroup="dwc:anyIdentificationTerm"/>
    <xs:element name="typeStatus" type="xs:string" substitutionGroup="dwc:anyIdentificationTerm"/>
    <xs:element name="identifiedBy" type="xs:string" substitutionGroup="dwc:anyIdentificationTerm"/>
    <xs:element name="identifiedByID" type="xs:string" substitutionGroup="dwc:anyIdentificationTerm"/>
    <xs:element name="dateIdentified" type="dwc:dateTimeISO" substitutionGroup="dwc:anyIdentificationTerm"/>
    <xs:element name="identificationReferences" type="xs:string" substitutionGroup="dwc:anyIdentificationTerm"/>
    <xs:element name="identificationVerificationStatus" type="xs:string" substitutionGroup="dwc:anyIdentificationTerm"/>
    <xs:element name="identificationRemarks" type="xs:string" substitutionGroup="dwc:anyIdentificationTerm"/>
    <xs:group name="IdentificationTerms">
        <xs:sequence>
            <xs:element ref="dwc:verbatimIdentification" minOccurs="0"/>
            <xs:element ref="dwc:identificationQualifier" minOccurs="0"/>
            <xs:element ref="dwc:typeStatus" minOccurs="0"/>
            <xs:element ref="dwc:identifiedBy" minOccurs="0"/>
            <xs:element ref="dwc:identifiedByID" minOccurs="0"/>
            <xs:element ref="dwc:dateIdentified" minOccurs="0"/>
            <xs:element ref="dwc:identificationReferences" minOccurs="0"/>
            <xs:element ref="dwc:identificationVerificationStatus" minOccurs="0"/>
            <xs:element ref="dwc:identificationRemarks" minOccurs="0"/>
        </xs:sequence>
    </xs:group>

    <!-- TAXON domain -->
    <xs:element name="anyTaxonTerm" abstract="true" substitutionGroup="dwc:anyProperty"/>
    <xs:element name="taxonID" type="dwc:nonEmptyString" substitutionGroup="dwc:anyIdentifier"/>
    <!-- domain properties -->
    <xs:element name="scientificNameID" type="dwc:nonEmptyString" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="acceptedNameUsageID" type="dwc:nonEmptyString" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="parentNameUsageID" type="dwc:nonEmptyString" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="originalNameUsageID" type="dwc:nonEmptyString" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="nameAccordingToID" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="namePublishedInID" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="taxonConceptID" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="scientificName" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="acceptedNameUsage" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="parentNameUsage" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="originalNameUsage" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="nameAccordingTo" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="namePublishedIn" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="namePublishedInYear" type="xs:gYear" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="higherClassification" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="kingdom" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="phylum" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="class" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="order" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="superfamily" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="family" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="subfamily" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="tribe" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="subtribe" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="genus" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="genericName" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="subgenus" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="infragenericEpithet" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="specificEpithet" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="infraspecificEpithet" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="cultivarEpithet" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="taxonRank" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="verbatimTaxonRank" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="scientificNameAuthorship" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="vernacularName" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="nomenclaturalCode" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="taxonomicStatus" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="nomenclaturalStatus" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:element name="taxonRemarks" type="xs:string" substitutionGroup="dwc:anyTaxonTerm"/>
    <xs:group name="TaxonTerms">
        <xs:sequence>
            <xs:element ref="dwc:scientificNameID" minOccurs="0"/>
            <xs:element ref="dwc:acceptedNameUsageID" minOccurs="0"/>
            <xs:element ref="dwc:parentNameUsageID" minOccurs="0"/>
            <xs:element ref="dwc:originalNameUsageID" minOccurs="0"/>
            <xs:element ref="dwc:nameAccordingToID" minOccurs="0"/>
            <xs:element ref="dwc:namePublishedInID" minOccurs="0"/>
            <xs:element ref="dwc:taxonConceptID" minOccurs="0"/>
            <xs:element ref="dwc:scientificName" minOccurs="0"/>
            <xs:element ref="dwc:acceptedNameUsage" minOccurs="0"/>
            <xs:element ref="dwc:parentNameUsage" minOccurs="0"/>
            <xs:element ref="dwc:originalNameUsage" minOccurs="0"/>
            <xs:element ref="dwc:nameAccordingTo" minOccurs="0"/>
            <xs:element ref="dwc:namePublishedIn" minOccurs="0"/>
            <xs:element ref="dwc:namePublishedInYear" minOccurs="0"/>
            <xs:element ref="dwc:higherClassification" minOccurs="0"/>
            <xs:element ref="dwc:kingdom" minOccurs="0"/>
            <xs:element ref="dwc:phylum" minOccurs="0"/>
            <xs:element ref="dwc:class" minOccurs="0"/>
            <xs:element ref="dwc:order" minOccurs="0"/>
            <xs:element ref="dwc:superfamily" minOccurs="0"/>
            <xs:element ref="dwc:family" minOccurs="0"/>
            <xs:element ref="dwc:subfamily" minOccurs="0"/>
            <xs:element ref="dwc:tribe" minOccurs="0"/>
            <xs:element ref="dwc:subtribe" minOccurs="0"/>
            <xs:element ref="dwc:genus" minOccurs="0"/>
            <xs:element ref="dwc:genericName" minOccurs="0"/>
            <xs:element ref="dwc:subgenus" minOccurs="0"/>
            <xs:element ref="dwc:infragenericEpithet" minOccurs="0"/>
            <xs:element ref="dwc:specificEpithet" minOccurs="0"/>
            <xs:element ref="dwc:infraspecificEpithet" minOccurs="0"/>
            <xs:element ref="dwc:cultivarEpithet" minOccurs="0"/>
            <xs:element ref="dwc:taxonRank" minOccurs="0"/>
            <xs:element ref="dwc:verbatimTaxonRank" minOccurs="0"/>
            <xs:element ref="dwc:scientificNameAuthorship" minOccurs="0"/>
            <xs:element ref="dwc:vernacularName" minOccurs="0"/>
            <xs:element ref="dwc:nomenclaturalCode" minOccurs="0"/>
            <xs:element ref="dwc:taxonomicStatus" minOccurs="0"/>
            <xs:element ref="dwc:nomenclaturalStatus" minOccurs="0"/>
            <xs:element ref="dwc:taxonRemarks" minOccurs="0"/>
        </xs:sequence>
    </xs:group>

    <!-- MEASUREMENTORFACT domain -->
    <xs:element name="anyMeasurementTerm" abstract="true" substitutionGroup="dwc:anyProperty"/>
    <xs:element name="measurementID" type="dwc:nonEmptyString" substitutionGroup="dwc:anyIdentifier"/>
    <!-- domain properties -->
    <xs:element name="parentMeasurementID" type="xs:string" substitutionGroup="dwc:anyMeasurementTerm"/>
    <xs:element name="measurementType" type="xs:string" substitutionGroup="dwc:anyMeasurementTerm"/>
    <xs:element name="measurementValue" type="xs:string" substitutionGroup="dwc:anyMeasurementTerm"/>
    <xs:element name="measurementAccuracy" type="xs:string" substitutionGroup="dwc:anyMeasurementTerm"/>
    <xs:element name="measurementUnit" type="xs:string" substitutionGroup="dwc:anyMeasurementTerm"/>
    <xs:element name="measurementDeterminedBy" type="xs:string" substitutionGroup="dwc:anyMeasurementTerm"/>
    <xs:element name="measurementDeterminedDate" type="dwc:dateTimeISO" substitutionGroup="dwc:anyMeasurementTerm"/>
    <xs:element name="measurementMethod" type="xs:string" substitutionGroup="dwc:anyMeasurementTerm"/>
    <xs:element name="measurementRemarks" type="xs:string" substitutionGroup="dwc:anyMeasurementTerm"/>
    <xs:group name="MeasurementTerms">
        <xs:sequence>
            <xs:element ref="dwc:parentMeasurementID" minOccurs="0"/>
            <xs:element ref="dwc:measurementType" minOccurs="0"/>
            <xs:element ref="dwc:measurementValue" minOccurs="0"/>
            <xs:element ref="dwc:measurementAccuracy" minOccurs="0"/>
            <xs:element ref="dwc:measurementUnit" minOccurs="0"/>
            <xs:element ref="dwc:measurementDeterminedBy" minOccurs="0"/>
            <xs:element ref="dwc:measurementDeterminedDate" minOccurs="0"/>
            <xs:element ref="dwc:measurementMethod" minOccurs="0"/>
            <xs:element ref="dwc:measurementRemarks" minOccurs="0"/>
        </xs:sequence>
    </xs:group>

    <!-- RESOURCERELATIONSHIP domain -->
    <xs:element name="anyResourceRelationshipTerm" abstract="true" substitutionGroup="dwc:anyProperty"/>
    <xs:element name="resourceRelationshipID" type="dwc:nonEmptyString" substitutionGroup="dwc:anyIdentifier"/>
    <!-- domain properties -->
    <xs:element name="resourceID" type="dwc:nonEmptyString" substitutionGroup="dwc:anyResourceRelationshipTerm"/>
    <xs:element name="relationshipOfResourceID" type="dwc:nonEmptyString" substitutionGroup="dwc:anyResourceRelationshipTerm"/>
    <xs:element name="relatedResourceID" type="dwc:nonEmptyString" substitutionGroup="dwc:anyResourceRelationshipTerm"/>
    <xs:element name="relationshipOfResource" type="xs:string" substitutionGroup="dwc:anyResourceRelationshipTerm"/>
    <xs:element name="relationshipAccordingTo" type="xs:string" substitutionGroup="dwc:anyResourceRelationshipTerm"/>
    <xs:element name="relationshipEstablishedDate" type="dwc:dateTimeISO" substitutionGroup="dwc:anyResourceRelationshipTerm"/>
    <xs:element name="relationshipRemarks" type="xs:string" substitutionGroup="dwc:anyResourceRelationshipTerm"/>
    <xs:group name="ResourceRelationshipTerms">
        <xs:sequence>
            <xs:element ref="dwc:resourceID" minOccurs="0"/>
            <xs:element ref="dwc:relationshipOfResourceID" minOccurs="0"/>
            <xs:element ref="dwc:relatedResourceID" minOccurs="0"/>
            <xs:element ref="dwc:relationshipOfResource" minOccurs="0"/>
            <xs:element ref="dwc:relationshipAccordingTo" minOccurs="0"/>
            <xs:element ref="dwc:relationshipEstablishedDate" minOccurs="0"/>
            <xs:element ref="dwc:relationshipRemarks" minOccurs="0"/>
        </xs:sequence>
    </xs:group>

    <!-- CHRONOMETRICAGE domain -->
    <xs:element name="anyChronometricAgeTerm" abstract="true" substitutionGroup="dwc:anyProperty"/>
    <xs:element name="chronometriAgeID" type="dwc:nonEmptyString" substitutionGroup="dwc:anyIdentifier"/>
    <!-- domain properties -->
    <xs:element name="verbatimChronometricAge" type="dwc:nonEmptyString" substitutionGroup="dwc:anyChronometricAgeTerm"/>
    <xs:element name="chronometricAgeProtocol" type="dwc:nonEmptyString" substitutionGroup="dwc:anyChronometricAgeTerm"/>
    <xs:element name="uncalibratedChronometricAge" type="dwc:nonEmptyString" substitutionGroup="dwc:anyChronometricAgeTerm"/>
    <xs:element name="chronometricAgeConversionProtocol" type="dwc:nonEmptyString" substitutionGroup="dwc:anyChronometricAgeTerm"/>
    <xs:element name="earliestChronometricAge" type="dwc:nonEmptyString" substitutionGroup="dwc:anyChronometricAgeTerm"/>
    <xs:element name="earliestChronometricAgeReferenceSystem" type="dwc:nonEmptyString" substitutionGroup="dwc:anyChronometricAgeTerm"/>
    <xs:element name="latestChronometricAge" type="dwc:nonEmptyString" substitutionGroup="dwc:anyChronometricAgeTerm"/>
    <xs:element name="latestChronometricAgeReferenceSystem" type="dwc:nonEmptyString" substitutionGroup="dwc:anyChronometricAgeTerm"/>
    <xs:element name="chronometricAgeUncertaintyInYears" type="dwc:nonEmptyString" substitutionGroup="dwc:anyChronometricAgeTerm"/>
    <xs:element name="chronometricAgeUncertaintyMethod" type="dwc:nonEmptyString" substitutionGroup="dwc:anyChronometricAgeTerm"/>
    <xs:element name="materialDated" type="dwc:nonEmptyString" substitutionGroup="dwc:anyChronometricAgeTerm"/>
    <xs:element name="materialDatedID" type="dwc:nonEmptyString" substitutionGroup="dwc:anyChronometricAgeTerm"/>
    <xs:element name="materialDatedRelationship" type="dwc:nonEmptyString" substitutionGroup="dwc:anyChronometricAgeTerm"/>
    <xs:element name="chronometricAgeDeterminedBy" type="dwc:nonEmptyString" substitutionGroup="dwc:anyChronometricAgeTerm"/>
    <xs:element name="chronometricAgeDeterminedDate" type="dwc:nonEmptyString" substitutionGroup="dwc:anyChronometricAgeTerm"/>
    <xs:element name="chronometricAgeReferences" type="dwc:nonEmptyString" substitutionGroup="dwc:anyChronometricAgeTerm"/>
    <xs:element name="chronometricAgeRemarks" type="dwc:nonEmptyString" substitutionGroup="dwc:anyChronometricAgeTerm"/>
    <xs:group name="ChronometricAgeTerms">
        <xs:sequence>
            <xs:element ref="chrono:verbatimChronometricAge" minOccurs="0"/>
            <xs:element ref="chrono:chronometricAgeProtocol" minOccurs="0"/>
            <xs:element ref="chrono:uncalibratedChronometricAge" minOccurs="0"/>
            <xs:element ref="chrono:chronometricAgeConversionProtocol" minOccurs="0"/>
            <xs:element ref="chrono:earliestChronometricAge" minOccurs="0"/>
            <xs:element ref="chrono:earliestChronometricAgeReferenceSystem" minOccurs="0"/>
            <xs:element ref="chrono:latestChronometricAge" minOccurs="0"/>
            <xs:element ref="chrono:latestChronometricAgeReferenceSystem" minOccurs="0"/>
            <xs:element ref="chrono:chronometricAgeUncertaintyInYears" minOccurs="0"/>
            <xs:element ref="chrono:chronometricAgeUncertaintyMethod" minOccurs="0"/>
            <xs:element ref="chrono:materialDated" minOccurs="0"/>
            <xs:element ref="chrono:materialDatedID" minOccurs="0"/>
            <xs:element ref="chrono:materialDatedRelationship" minOccurs="0"/>
            <xs:element ref="chrono:chronometricAgeDeterminedBy" minOccurs="0"/>
            <xs:element ref="chrono:chronometricAgeDeterminedDate" minOccurs="0"/>
            <xs:element ref="chrono:chronometricAgeReferences" minOccurs="0"/>
            <xs:element ref="chrono:chronometricAgeRemarks" minOccurs="0"/>
        </xs:sequence>
    </xs:group>
</xs:schema>