Where: Tasmania, Australia (42.8° S, 147.2° E: paleocoordinates 78.2° S, 165.5° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: A Member (Malbina Formation), Roadian (272.3 - 268.8 Ma)

• Lymingtonian T6-7.

•Brachiopods indicate the Echinalosia 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: marine; lithified siliciclastic sediments

Size class: macrofossils

Collection methods: peel or thin section,

Primary reference: C. M. Reid. 2003. Permian Bryozoa of Tasmania and New South Wales: systematics and their use in Tasmanian biostratigraphy. Association of Australasian Palaeontologists, Memoir 28:1-133 [D. Bottjer/C. Powers]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 116517: authorized by Matthew Clapham, entered by Matthew Clapham on 08.09.2011

Creative Commons license: CC BY (attribution)