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: Branxton Formation, Roadian (272.3 - 268.8 Ma)

• Approximately 80 m below base of Muree Formation. Underlying 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 136366: authorized by Matthew Clapham, entered by Matthew Clapham on 26.11.2012

Creative Commons license: CC BY (attribution)