Australian Cretaceous Fossils and Palaeogeography Notes

Notes on Australian Lower Cretaceous palaeogeography describe a small collection of marine Lower Cretaceous Mollusca from the Mount Samuel area in central Western Australia. The collection consists of six genera and seven species known from the Roma Formation beds of the Great Artesian Basin. The notes are provided by the Australian Ocean Data Network and were last updated in May 2026.

Use Cases

• Identify Cretaceous marine mollusc species based on the described genera and species.
• Analyse palaeogeographic seaway connections between the Great Artesian Basin and Mount Samuel area during Aptian times.
• Study migration routes of marine organisms along southern routes through Officer and Eucla Basins.
• Correlate sedimentary formations (Roma and Tambo) across Queensland and the Northern Territory.

Strengths

• Focuses on a specific geological period (Lower Cretaceous) and region (central Western Australia).
• Describes a concrete collection of six genera and seven species of marine Mollusca.
• Proposes specific palaeogeographic hypotheses, such as a communicating seaway during Aptian times.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Australian Ocean Data Network

Time Range

Cretaceous period (Aptian and Upper Albian ages)

Freshness

Last updated 2026-05-05 05:05:00.026749; freshness should be verified.

Geography

Mount Samuel area (central Western Australia), Great Artesian Basin, Officer and Eucla Basins, Northern Territory, Queensland