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: Wandrawandian Formation, Roadian (272.3 - 268.8 Ma)

• Brachiopods from the area suggest the upper Echinalosia maxwelli or E. davidi 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 siltstone

Size class: macrofossils

Preservation: replaced with limonite

Primary reference: G. D. Webster and P. A. Jell. 1999. New Permian crinoids from Australia. Memoirs of the Queensland Museum 43(1):279-340 [G. Webster/G. Webster/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 120595: authorized by Matthew Clapham, entered by Matthew Clapham on 18.11.2011

Creative Commons license: CC BY (attribution)