Also known as Snapper Point

Where: New South Wales, Australia (35.6° S, 150.4° E: paleocoordinates 70.6° S, 162.3° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Snapper Point Formation (Conjola Group), Roadian (272.3 - 268.8 Ma)

• Was Conjola formation, but this is now a subgroup. Almost certainly the Snapper Point formation. Formation assigned to the Echinalosia maxwelli brachiopod zone, equivalent to the upper part of APP3.2 or lower 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. maxwelli zone is most likely Roadian.

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithified sandstone

Size class: macrofossils

Preservation: mold/impression

Collection methods: Repository: Australian Museum, Sydney

Primary reference: B. Runnegar. 1967. Desmodont bivalves from the Permian of eastern Australia. Bureau of Mineral Resources, Geology and Geophysics Bulletin 96:1-108 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 136665: authorized by Matthew Clapham, entered by Matthew Clapham on 01.12.2012

Creative Commons license: CC BY (attribution)