UNE L1364, Pinnacle Road (Permian of Australia)

Where: New South Wales, Australia (32.9° S, 151.4° E: paleocoordinates 67.8° S, 161.6° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Fenestella Shale Member (Branxton Formation), Roadian (272.3 - 268.8 Ma)

• From top third of unit. Brachiopods from the formation suggest the Echinalosia davidi brachiopod zone, equivalent to the middle part of APP3.3 palynomorph zone. Laurie et al. (2016) dated zircons from the Rowan Formation in the Sydney Basin (in the underlying upper Echinalosia preovalis zone, or upper APP3.2) as 271.60 and 271.89 Ma, constraining its upper part to Roadian, given a Roadian-Wordian boundary around 266.9 Ma (Wu et al., 2020). 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 (Laurie et al. 2016). As a result, APP3.3 appears to fall entirely within the Roadian. As a result, the E. davidi zone is most likely Roadian.

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; lithified, shelly/skeletal shale

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 136343: authorized by Matthew Clapham, entered by Matthew Clapham on 26.11.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Spiriferida - Ingelarellidae
Ingelarella cf. costata Waterhouse 1964