Where: Queensland, Australia (27.6° S, 152.8° E: paleocoordinates 58.5° S, 101.2° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Mount Crosby Formation, Norian (228.0 - 208.5 Ma)

• Purdy & Cranfield (2013) reported an unpublished SHRIMP date of 226±2 Ma for the Brisbane Tuff. Therefore, the Blackstone Formation may be considered younger than 226 Ma in absolute age. Thus, the Ipswich Coal Measures above the Brisbane Tuff, which is to say, the succession from the Mount Crosby Formation to the top of the Blackstone Formation must now be considered Norian.

• bed-level stratigraphic resolution

Environment/lithology: lacustrine - small; lithified shale

Size classes: macrofossils, mesofossils

Preservation: adpression

Collection methods: Repository: Queensland Museum, Brisbane

Primary reference: M. S. Engel. 2005. A new sawfly from the Triassic of Queensland (Hymenoptera: Xyelidae). Memoirs of the Queensland Museum 51(2):558 [M. Clapham/A. Delelli/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 156521: authorized by Matthew Clapham, entered by Matthew Clapham on 22.05.2014

Creative Commons license: CC BY (attribution)