Mount Crosby Insect locality C (Lambkin collection) (Triassic of Australia)

Where: Queensland, Australia (27.6° S, 152.8° E: paleocoordinates 58.5° S, 101.1° 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• Purdy & Cranfield (2013) reported an unpublished SHRIMP date of 226±2 Ma for the Brisbane Tuff.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 Kevin Lambkin

• Repository: Kevin Lambkin Collection (now donated to Queensland Museum)

Primary reference: K. J. Lambkin. 2017. Archebittacus exilis Riek—the oldest hangingfly (Insecta: Mecoptera: Bittacidae). Zootaxa 4290:385-389 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 191411: authorized by Matthew Clapham, entered by Matthew Clapham on 26.01.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

 Mecoptera - Bittacidae
Archebittacus exilis Riek 1955 hangingfly
QM F58842