A unit of classification of geologic time based on the presence of a key fossil taxa or particular assemblages of taxa.

identifier (M, K, I: ndt_name)

The name or label used to distinguish an event or period of time. Inherited from temporal_object.


ref_biozone (M: ref_biozone)

Biozones are classified into a) "interval" zones, specifying a taxon range, b) "assemblage" zones, specifying the range of an association of taxa, and c) "abundance" zones, characterized by a quantitatively distinctive maxima in relative abundance of taxa.


source (M, I: ref_source)

The provider of this instance of reference information. If this instance is provided by POSC, then this attribute must be "POSC". Each biozone must provided by one ref_source. Inherited from reference_behavior.


description (O, I: ndt_comment)

A textual description of the temporal object. Inherited from temporal_object.


status (O, I: ndt_instance_status) (0644)

The status of this instance in the version of Epicentre running in a data store. This is an enumerated datatype for which the following are the possible values: current, provisional, deprecated. Current - use without restriction. Provisional - use with caution, this value is for comment and may not appear in future releases of Epicentre. Deprecated - avoid use if possible, it is planned to remove this value in the next major release of Epicentre. Inherited from reference_behavior.


data_collection (I, V: SET[0:?] data_collection(collection_content))

Indicates the data collections that include this instance of E and P data. Each biozone may be a member of one or more data_collection. Inherited from e_and_p_data.


datum_for_ranking (I, V: SET[0:?] object_ranking(base_object))

Indicates that an object is being used as a basis for comparison with another object. Each biozone may datum for ranking one or more object_ranking. Inherited from object_of_interest.


fossil_taxon (I, V: SET[0:?] fossil_taxon(temporal_period))

Indicates fossil taxa which existed during this period. Each biozone may date the existance of one or more fossil_taxon. Inherited from temporal_period.


geologic_age_classification (I, V: SET[0:?] geologic_age_classification(temporal_object))

Indicates the classification of a geologic feature or material as being originated or altered during this time period. Each biozone may age of one or more geologic_age_classification. Inherited from temporal_object.


geologic_province (O, I: SET[0:?] geologic_province(temporal_object))

Defines the geographic scope in which the time period is recognized. Each biozone may be recognized within one or more geologic_province. Inherited from temporal_object.


graphical_element (I, V: SET[0:?] graphical_element(depicted_object))

Specifies one or more graphical elements which are depicting this data item. Each biozone may be depicted by one or more graphical_element. Inherited from e_and_p_data.


intersection_role (I, V: SET[0:?] space_time_operation(intersecting_object))

Indicates a space/time operation for which the object is involved as an intersecting agent. For projection, this is the screen on which an object is being projected. For proximity, this is the magnet object. Each biozone may be the intersecting object for one or more space_time_operation. Inherited from topological_object.


object_of_ranking (I, V: SET[0:?] object_ranking(ranked_object))

Indicates that an object is being classified in a rank order based on its characteristics. Each biozone may object of ranking one or more object_ranking. Inherited from object_of_interest.


primary_role (I, V: SET[0:?] space_time_operation(primary_object))

Indicates a space/time operation for which the object is involved as a primary agent. For degeneration, this object is being degenerated. For projection, this object is being projected onto another object. For proximity, this is the container object. Each biozone may be the primary object for one or more space_time_operation. Inherited from topological_object.


primary_topological_relationship (I, V: SET[0:?] topological_relationship(primary_topological_object))

Indicates a topological relationship in which the topologic object has the role of primary agent. For an object intersection type of "inside" this is the containing role (e.g., if a city is inside a county then the county would be the primary agent). For all other object intersection types the roles are symmetrical and both relationships must be searched for a particular object. For example, if a wellbore and a formation overlap then either could be chosen as the primary agent with the other chosen as the secondary agent. Each biozone may be primarily involved in one or more topological_relationship. Inherited from topological_object.


pty_geologic_age_range (I, V: SET[0:?] pty_geologic_age_range(temporal_period))

Each biozone may have a property of one or more pty_geologic_age_range. Inherited from temporal_period.


ref_naming_system (O, I: ref_naming_system)

The naming system in which an identifier is defined and unique. Inherited from temporal_object.


rock_feature (O: SET[0:?] rock_feature(biozone)) (1226)

The biozone may be found within the contents of one or more rock features. Each biozone may be represented by one or more rock_feature.


secondary_topological_relationship (I, V: SET[0:?] topological_relationship(secondary_topological_object))

Indicates a topological relationship in which the object is in the role of secondary agent. For an object intersection type of "inside" this is the contained role (e.g., if a well is inside a field then the well would be the secondary agent). For all other object intersection types the roles are symmetrical and both relationships must be searched for a particular object. For example, if a wellbore and a formation overlap then either could be chosen as the secondary agent with the other chosen as the primary agent. Each biozone may be involved in one or more topological_relationship. Inherited from topological_object.


source_reference (O, I: ref_source_reference)

The reference used by source to provide the standard instance, such as Petroleum Industry Data Dictionary (PIDD), Websters Ninth New Collegiate Dictionary, etc. Each biozone may documented by one ref_source_reference. Inherited from reference_behavior.


source_space_time_operation (I, V: BAG[0:1] space_time_operation(resulting_object))

Indicates the space/time operation from which a topological object was the result. For addition, this is the union of two objects. For degeneration, this is the degenerate object. Each biozone may be the result of one space_time_operation. Inherited from topological_object.


temporal_event (O: SET[0:?] biozone_marker)

Defines the biozone markers which begin or end the biozone. Each biozone may be bound by one or more biozone_marker.


temporal_object_alias (I, V: SET[0:?] temporal_object_alias(temporal_object))

Indicates the various identifiers by which this object is known. Each biozone may be known by one or more temporal_object_alias. Inherited from temporal_object.


version (O, I: ref_epicentre_version) (0644)

Describes the version of Epicentre when this status was assigned to this instance of reference behavior Each biozone may version one ref_epicentre_version. Inherited from reference_behavior.

Local rules:

[I: chronozone] Uniqueness Constraint
identifier

[I: temporal_period] Uniqueness Constraint
identifier

Uniqueness Constraint
identifier
Supertype path(s):
e_and_p_data > object_of_interest > technical_object > temporal_object > temporal_period > chronozone > biozone.
reference_behavior > temporal_object > temporal_period > chronozone > biozone.
topological_object > temporal_object > temporal_period > chronozone > biozone.

Entity consolidated into table TEMPORAL_OBJECT.

Referenced in Diagrams:

• EMT: Geochronology (1226)