BMR SL346, Ripplebrook Homestead (Permian of Australia)

Where: Queensland, Australia (22.4° S, 149.4° E: paleocoordinates 57.9° S, 153.1° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Echinalosia preovalis brachiopod zone, Back Creek Group, Kungurian (279.3 - 272.3 Ma)

• Brachiopods suggest the lower Echinalosia provalis zone, correlated with the APP3.1 palynomorph zone (Briggs, 1998). The APP3.1 zone does not have any radiometric constraints, although the top of the overlying APP3.2 is around 271.6 Ma (Laurie et al., 2016), placing it near the Kungurian-Roadian boundary or in the lower Roadian. Phillips et al. (2018) place APP3.1 in the Kungurian, which is consistent with the presence of the ammonoid Neocrimites in APP3.1 of the the Tiverton Formation (although not unequivocal).

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithified sandstone and lithified volcaniclastic

Size class: macrofossils

Preservation: mold/impression

Primary reference: D. J. C. Briggs. 1998. Permian Productidina and Strophalosiidina from the Sydney-Bowen Basin and New England Orogen: systematics and biostratigraphic significance. Memoirs of the Association of Australasian Palaeontologists 19:1-258 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 85857: authorized by Matthew Clapham, entered by Matthew Clapham on 17.01.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Productida - Aulostegidae
 Productida - Strophalosiidae
Echinalosia preovalis Maxwell 1954
 Productida - Linoproductidae
Terrakea pollex Hill 1950