Upper Cambrian Trilobite Fossils and Stratigraphy from the Kayrunnera Group, NSW

Nine species of trilobites are recorded from three localities within the Boshy Formation of the Kayrunnera Group in western New South Wales. The assemblage is early Late Cambrian (Mindyallan), most closely referable to the late Mindyallan zone of Glyptagnostus stolidotus. The dataset is provided by Geoscience Australia and was last updated in 2026.

Use Cases

• Classifying trilobite species based on the described genera including Ammagnostus, Meteoraspis, and Blackwelderia.
• Correlating geological time periods based on the described Mindyallan trilobite assemblage.
• Studying regional stratigraphy based on the description of the Kayrunnera Group's formation and angular unconformity.
• Researching paleoenvironments based on the shallow marine origin of the Boshy Formation.

Strengths

• Focuses on a specific, well-defined stratigraphic interval near the base of the Kayrunnera Group.
• Describes nine distinct trilobite species from three separate localities.
• Provides detailed geological context including the relationship to the Delamerian Orogeny.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is provided in PDF/HTML formats, which may require extraction for computational analysis.

Provenance

Source

Geoscience Australia Data

Collection Method

Field collection and paleontological analysis from the Kayrunnera Group.

Time Range

Late Cambrian (Mindyallan) period.

Freshness

Last updated 2026-04-20 02:52:10.063915; freshness should be verified.

Geography

Kayrunnera station, western New South Wales, Australia.