Mount Crosby Insect locality D (Knezour collection) (Triassic of Australia)

Where: Queensland, Australia (27.5° 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• Purdy & Cranfield (2013) reported an unpublished SHRIMP date of 226±2 Ma for the Brisbane Tuff.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

• 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 classes: macrofossils, mesofossils

Preservation: mold/impression

Collected by Robert Knezour

• Repository: Queensland Museum

Primary reference: K. J. Lambkin. 2015. Revision of the Dysmorphoptilidae with emarginate tegmina (Hemiptera: Auchenorryncha: Cicadomorpha: Prosboloidea) of the Queensland Triassic. Zootaxa 3936:357-374 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 172773: authorized by Matthew Clapham, entered by Matthew Clapham on 22.08.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Hemiptera - Dysmorphoptilidae
Tennentsia princeps Lambkin 2015 true bug
QM F57826