Where: New South Wales, Australia (35.4° S, 150.5° E: paleocoordinates 70.4° S, 162.3° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Echinalosia maxwelli brachiopod zone, Wandrawandian Formation, Roadian (272.3 - 268.8 Ma)

• From the basal part of the formation. Brachiopods suggest the upper Echinalosia maxwelli zone, correlated with the 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: prodelta; lithified siliciclastic sediments

Size class: macrofossils

Preservation: mold/impression

Reposited in the UQ

Primary reference: J. F. Dear. 1971. Strophomenoid brachiopods from the higher Permian faunas of the Back Creek Group in the Bowen Basin. Geological Survey of Queensland Publication 347:1-22 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 103996: authorized by Matthew Clapham, entered by Matthew Clapham on 04.02.2011

Creative Commons license: CC BY (attribution)