Upper Cambrian Trilobite Species and Stratigraphy from the Kayrunnera Group

Nine trilobite species from three localities are recorded in a restricted stratigraphic interval near the base of the Kayrunnera Group in western New South Wales. The assemblage, described in a PDF/HTML document from the Australian Ocean Data Network, is early Late Cambrian (Mindyallan) and referable to the Glyptagnostus stolidotus zone. The data documents the Boshy Formation, a shallow marine deposit overlying an angular unconformity produced during a probable early phase of the Delamerian Orogeny.

Use Cases

• Biostratigraphic correlation based on the described trilobite assemblage of Ammagnostus, Meteoraspis, and other genera.
• Analysis of regional tectonic history based on the documented angular unconformity and folding events.
• Study of marine transgression sequences in the Late Cambrian based on the described depositional context of the Kayrunnera Group.
• Taxonomic classification and comparison of Mindyallan trilobite species from the Boshy Formation.

Strengths

• Describes nine distinct trilobite species from three specific localities.
• Provides detailed stratigraphic and tectonic context, including references to formations, unconformities, and orogenic events.
• Document is sourced from the Australian Ocean Data Network, suggesting institutional provenance.

Limitations

• Data is presented as PDF/HTML documents; column-level documentation and structured data are absent.
• Row count and dataset size are unknown, which may limit suitability assessment.
• Freshness should be verified; the last updated date is 2026-04-10 20:07:42.909072.

Provenance

Source

Australian Ocean Data Network

Collection Method

Likely contains research findings and descriptions from geological fieldwork and analysis.

Time Range

Late Cambrian (Mindyallan) period.

Freshness

Last updated 2026-04-10 20:07:42.909072

Geography

Kayrunnera station, western New South Wales, Australia.