Where: Queensland, Australia (27.6° S, 152.8° E: paleocoordinates 58.6° S, 101.2° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Blackstone 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• Purdy & Cranfield (2013) reported an unpublished SHRIMP date of 226±2 Ma for the Brisbane Tuff.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.
• group of beds-level stratigraphic resolution
Environment/lithology: pond; lithified mudstone
•Ipswich basin; transtensional rift in intermontane setting. Basin geometry affected by strike-slip movement along West Ipswich fault. Ipswich coal measures deposited near end of rifting phase.
Size class: macrofossils
Preservation: adpression
Collected by Robert Knezour
• Repository: Queensland Museum
Primary reference: P. A. Jell. 1993. Late Triassic homopterous nymph from Dinmore, Ipswich Basin. Memoirs of the Queensland Museum 33:360 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 154205: authorized by Matthew Clapham, entered by Matthew Clapham on 01.02.2014
Creative Commons license: CC BY (attribution)
Taxonomic list
Insecta | |
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Eurymelidium australe3 Tillyard 1919 true bug QM F58701, F58702, F58703, F58704, F58705, F58706, F58777
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Knezouria unicus n. gen. n. sp.
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Arachnida | |
Edwa maryae n. gen. n. sp.6
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