chronostratigraphic reference point

C23923
concept

A chronostratigraphic reference point is a precisely defined boundary in geological time, often marked by a Global Boundary Stratotype Section and Point (GSSP), used to correlate and standardize rock layers and time intervals worldwide.

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All labels observed (6)

Label Occurrences
stratigraphic boundary marker 4
chronostratigraphic reference point canonical 3
Permian–Triassic boundary section 1

Description generation (CDg)

The one-sentence description above was generated by prompting gpt-5.1 with the class name and this instruction.

Instruction
generate a one-sentence description for a given conceptual class.
# Response Format
Return only the sentence: "Description: [one-sentence description of the conceptional class]"
Input
Class: chronostratigraphic reference point
Generated description
A chronostratigraphic reference point is a precisely defined boundary in geological time, often marked by a Global Boundary Stratotype Section and Point (GSSP), used to correlate and standardize rock layers and time intervals worldwide.

Instances (9)

Instance Via concept surface
Global Boundary Stratotype Section and Point for base of Hettangian —
Meishan section, South China Permian–Triassic boundary section
Global Boundary Stratotype Section and Point stratigraphic boundary marker
GSSP at Aidaralash Creek, Kazakhstan (base of Asselian) stratigraphic boundary marker
Eifelian GSSP at Wetteldorf, Germany stratigraphic boundary marker
Global Boundary Stratotype Section and Point for the base of the Anisian —
GSSP at Enorama Creek, Flinders Ranges, South Australia geological time scale boundary marker
Global Standard Stratigraphic Age (GSSA)
surface form: Global Standard Stratigraphic Age
—
Global Boundary Stratotype Section and Point for base at Peniche, Portugal stratigraphic boundary marker