Winton Formation Palynostratigraphic Age Constraints from Eromanga Basin Wells

New palynostratigraphic age constraints for the Winton Formation in Queensland, Australia, are presented. The dataset likely contains microfossil data from 18 drill cutting samples from two petroleum wells, Tamarama-1 and Queenscliff-1. It was created by Vera A. Korasidis and colleagues and last updated in May 2026.

Use Cases

• Refining geological age models for the Winton Formation based on palynological zone assignments.
• Correlating fossil assemblages with specific time intervals based on the presence or absence of key microfossil species.
• Assessing the applicability of existing palynostratigraphic schemes to the Eromanga Basin.

Strengths

• Data is derived from 18 drill cutting samples with noted excellent microfossil preservation.
• Age assignment is based on specific index fossils like Phimopollenites pannosus and Crybelosporites sp. cf. C. brenneri.
• The study refines previous age estimates for the formation to a latest Albian to Cenomanian age.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The dataset is very small (13.1 KB), indicating limited scope.

Provenance

Source

figshare

Collection Method

Palynological processing of drill cutting samples from petroleum wells.

Time Range

Latest Albian to Cenomanian age (Cretaceous period).

Freshness

Last updated 2026-05-25 01:00:02; freshness should be verified.

Geography

Eromanga Basin, Queensland, Australia.