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• Purdy & Cranfield (2013) reported an unpublished SHRIMP date of 226±2 Ma for the Brisbane Tuff.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 Allan Carsburg
• Repository: Allan Carsburg Collection, Brisbane (to be deposited in Queensland Museum)
Primary reference: K. J. Lambkin. 2014. Psychopsoid Neuroptera (Psychopsidae, Osmylopsycopidae) from the Queensland Triassic. Australian Entomologist 41:57-76 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 162402: authorized by Matthew Clapham, entered by Matthew Clapham on 24.09.2014
Creative Commons license: CC BY (attribution)
Taxonomic list
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