Middle Ordovician Conodont and Fish Fossils from the Stairway Sandstone

A Middle Ordovician fossil collection from the Stairway Sandstone formation in the Amadeus Basin. The dataset includes micro-vertebrate and conodont fossils from a field sample, enabling correlation to international biozonation schemes. It is provided by Geoscience Australia Data and was last updated in April 2026.

Use Cases

• Correlating rock layers based on conodont biozonation schemes mentioned in the description
• Studying early arandaspid fish fossils from the Middle Ordovician period
• Analyzing the paleoenvironment of the shallow marine Stairway Sandstone succession
• Assessing hydrocarbon prospectivity for the Larapinta Petroleum System

Strengths

• Fossils are described as abundant and well-preserved.
• Enables high-resolution correlation to international biozonation schemes.
• Data is associated with a specific geological unit and basin (Stairway Sandstone, Amadeus Basin).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The unit has not been directly dated, relying on fossil correlation.

Provenance

Source

Geoscience Australia Data

Collection Method

Field sample collected from the uppermost Stairway Sandstone.

Time Range

Middle Ordovician period

Freshness

Last updated 2026-04-20 03:27:46.732167; freshness should be verified.

Geography

Amadeus Basin