Where: New South Wales, Australia (32.7° S, 151.6° E: paleocoordinates 67.6° S, 161.9° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Echinalosia davidi brachiopod zone, Branxton Formation, Roadian (272.3 - 268.8 Ma)
• Approximately 130 m below base of Muree Fm. Brachiopods suggest the Echinalosia davidi zone, correlated with the middle part of APP3.3 palynomorph zone (Briggs, 1998). There are no direct radiometric constraints on APP3.3, although the top of the underlying APP3.2 is around 271.6 Ma (Laurie et al., 2016), placing it near the Kungurian-Roadian boundary or in the lower Roadian. Strata in Western Australia assigned to APP4.1 yielded U-Pb ages of 269.25 Ma or younger, constraining the upper boundary of APP3.3 to the late Roadian. As a result, APP3.3 appears to fall entirely within the Roadian.
• group of beds-level stratigraphic resolution
Environment/lithology: coastal; lithified, sandy siltstone
Size class: macrofossils
Preservation: mold/impression
Collection methods: Repository: University of New England
Primary reference: G. McClung. 1978. Morphology, palaeocology and biostratigraphy of Ingelarella (Brachiopoda : Spiriferida) in the Bowen and Sydney Basins of Eastern Australia. Geological Survey of Queensland Publication 365:17-87 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 103709: authorized by Matthew Clapham, entered by Matthew Clapham on 31.01.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
Strophomenata | |
"Echinalosia davidi" = Glabauria davidi
"Echinalosia davidi" = Glabauria davidi Briggs 1998 | |
Rhynchonellata | |
"Ingelarella oviformis" = Tomiopsis oviformis
"Ingelarella oviformis" = Tomiopsis oviformis M'Coy 1847 |