QML471, Quarry at end of Roberts Street, Dinmore (Triassic of Australia)

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• Purdy & Cranfield (2013) reported an unpublished SHRIMP date of 226±2 Ma for the Brisbane Tuff.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

• Interbedded sandstones and mudstones accumulated on levees bordering channels and graded laterally into floodplains where carbonaceous mudstones accumulated with thin crevasse splay sandstone beds.

•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.

• Plant-rich mudstone

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
 Mecoptera - Mesopsychidae
Mesopsyche triareolata1 Tillyard 1917 scorpionfly
QM F.57542, 57543
 Hemiptera - Scytinopteridae
Eurymelidium australe3 Tillyard 1919 true bug
QM F58701, F58702, F58703, F58704, F58705, F58706, F58777
Mesoscytina magna n. sp.3 Lambkin 2016 true bug
QM F58700
 Hemiptera - Hylicellidae
Mesocixiodes termioneura5 Tillyard 1922 true bug
RK1, RK2
 Hemiptera - Dysmorphoptilidae
"Eoscartoides dmitryi n. sp." = Mesonirvana dmitryi4, Carsburgia knezouri2
"Eoscartoides dmitryi n. sp." = Mesonirvana dmitryi4 Lambkin 2016 true bug
QM F58591, F58592
Carsburgia knezouri2 Lambkin 2015 true bug
QM F57796, F57797
 Hemiptera -
Knezouria unicus n. gen. n. sp.
Knezouria unicus n. gen. n. sp. Jell 1993 true bug
QMF18850
Arachnida
 Araneae - Dipluridae
Edwa maryae n. gen. n. sp.6
Edwa maryae n. gen. n. sp.6 Raven et al. 2015 funnel-web tarantula
QMF57640