Late Cambrian Trilobite Fossils from the Mariner Group, Antarctica

Antarctic fossil data describes the youngest Late Cambrian trilobite assemblage discovered in the Mariner Group of northern Victoria Land. The paper details seven determined trilobite taxa found at Eureka Spurs and discusses its biochronological position and paleogeographic relationships to faunas in Kazakhstan, Siberia, China, Australia, and North America. The dataset is provided by Geoscience Australia Data and was last updated on 2026-04-30.

Use Cases

• Comparative paleobiogeographic analysis based on described relationships to faunas from Kazakhstan, Siberia, China, Australia, and North America.
• Refining Late Cambrian biochronology based on the assemblage's suggested post-Idamean (early Franconian) age.
• Taxonomic study of trilobite evolution based on the seven determined taxa, including a proposed new species (Apheloides? depressa sp. nov).

Strengths

• Describes a specific, youngest-known Late Cambrian trilobite assemblage from a defined Antarctic location (Eureka Spurs, Mariner Glacier).
• Identifies seven determined trilobite taxa, providing a basis for taxonomic comparison.
• Discusses explicit paleogeographic relationships to multiple continental regions.

Limitations

• The exact biochronological position is noted as not yet finally established.
• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Geoscience Australia Data

Collection Method

Scientific paper describing fossil discoveries.

Time Range

Late Cambrian period (likely post-Idamean / early Franconian).

Freshness

Last updated 2026-04-30 14:05:16.771396; freshness should be verified.

Geography

Mariner Group, northern Victoria Land, Antarctica (Eureka Spurs, head of Mariner Glacier).