Geoscience Australia Data provides a record of well-preserved Late Triassic palynomorphs from the upper Flagstone Bench Formation in the Prince Charles Mountains, East Antarctica. The assemblage is assigned to the Australian Minutosaccus crenulatus Zone and considered to be of Norian age, containing taxa also found in coeval Tethyan Laurasian assemblages. This dataset was last updated on 2026-03-25.
Use Cases
- Biostratigraphic correlation based on the presence of specific palynomorph taxa like Enzonalasporites vigens and Minutosaccus crenulatus.
- Paleobiogeographic analysis of Gondwanan and Laurasian floral connections based on the distribution of the Onslow Microflora.
- Paleoclimatic reconstruction based on the suggested paleolatitudinal confinement of the flora to 40°-30°S.
- Studying marine-terrestrial interactions based on the rare presence of spinose acritarchs and a dinocyst specimen.
Strengths
- Contains a well-preserved palynoflora from a specific geological formation and location.
- Includes a list of the most common and distinctive palynomorph taxa, such as Ovalipollis ovalis and Duplicisporites scurrilis.
- Assigned to a specific biostratigraphic zone (Minutosaccus crenulatus Zone) and age (Norian).
- Represents the first record of a Triassic dinocyst from Antarctica.
Limitations
- Row count is unknown, which may limit suitability assessment.
- Column-level documentation is absent; field semantics must be inferred after download.
- Data is provided as PDF and HTML files, which may require extraction for computational analysis.
Provenance
- Source
- Geoscience Australia Data
- Collection Method
- Likely contains paleontological field sampling and laboratory analysis of rock samples.
- Time Range
- Late Triassic (Norian age)
- Freshness
- Last updated 2026-03-25 17:27:30.329799; freshness should be verified.
- Geography
- Prince Charles Mountains, East Antarctica