Upper Cambrian Trilobites and Stratigraphy of the Kayrunnera Group, Western NSW

Nine species of trilobites are recorded from three localities near the base of the Kayrunnera Group in western New South Wales. The trilobite assemblage, including species of Ammagnostus, Meteoraspis, and Blackwelderia, is early Late Cambrian (Mindyallan) and referable to the Glyptagnostus stolidotus zone. The dataset, hosted by the Australian Ocean Data Network, describes the Boshy Formation's shallow marine deposits and the geological context of an angular unconformity.

Use Cases

• Biostratigraphic correlation based on the described trilobite assemblage.
• Analysis of sedimentary basin evolution based on the described angular unconformity and turbidite succession.
• Paleogeographic reconstruction of the Wonominta Block based on lithological correlations mentioned.
• Taxonomic studies of Cambrian trilobites based on the nine recorded species.

Strengths

• Nine distinct trilobite species are identified.
• Data is tied to three specific localities and a defined stratigraphic interval.
• The geological context includes a described angular unconformity and correlation to a major orogenic phase.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to data_gov_au, focusing on a single region in western NSW.

Provenance

Source

Australian Ocean Data Network

Time Range

Early Late Cambrian (Mindyallan)

Freshness

Last updated 2026-05-05 04:53:10.271295; freshness should be verified.

Geography

Kayrunnera station, western New South Wales, Australia