Where: Queensland, Australia (27.6° S, 152.8° E: paleocoordinates 58.6° S, 101.0° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Blackstone Formation (Ipswich Coal Measures Group), Norian (228.0 - 208.5 Ma)
• Insect bed is about 50 feet above the Bluff coal seam and 50 feet below the Aberdare coal seam. Fossil bed is 15 cm thick. Purdy & Cranfield (2013) reported an unpublished SHRIMP date of 226±2 Ma for the Brisbane Tuff.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: pond; lithified, sandy siltstone
•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, adpression
Collected by Dunstan in 1909
Primary reference: R. J. Tillyard and B. Dunstan. 1916. Mesozoic and Tertiary Insects of Queensland and New South Wales. Descriptions of the fossil Insects and stratigraphical features. Queensland Geological Survey (253)1-63 [M. Clapham/J. Karr/R. Day]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 111777: authorized by Matthew Clapham, entered by Jered Karr on 28.06.2011, edited by Matthew Clapham
Creative Commons license: CC BY (attribution)
Taxonomic list
Insecta | |
Mesorthopteron locustoides n. gen. n. sp.2
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Austromylacrites latus n. gen. n. sp.2
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"Ademosyne tumida n. sp." = Platycrossos tumidus2
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Ulomites willcoxi n. gen. n. sp.2
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Ademosyne australiensis n. sp.2, Ademosyne olliffi2, Ademosyne congener n. sp.2, Ademosyne punctata n. sp.2, Ademosyne cameroni n. sp.2, Ademosyne major2
Ademosyne australiensis n. sp.2 Tillyard 1916 beetle GSQI 12,13,43, 44 (A. major in Tillyard, 1916 according to Dunstan, 1923)
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Tillyardiopsis variotuberculata n. sp.1
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"Mesothoris quadripartita" = Mesolobites quadripartita1
"Mesothoris quadripartita" = Mesolobites quadripartita1 Dunstan 1923 beetle GSQI 51 (formerly M. clathrata in Tillyard, 1916)
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"Ademosyne angusta n. sp." = Ademosynoides angusta2, "Ademosyne obtusa n. sp." = Ademosynoides obtusa2, Ademosynoides striatella n. sp.1, "Ademosyne minor" = Ademosynoides minor2
"Ademosyne angusta n. sp." = Ademosynoides angusta2 Tillyard 1916 false ground beetle GSQI 15 (not 16, now Ademosynoides striatella)
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Mesochorista proavita n. gen. n. sp.2
Mesochorista proavita n. gen. n. sp.2 Tillyard 1916 scorpionfly AM F39231 (Dunstan 32); F39230(29371) in Riek, 1956 (Dunstan coll, arbitrarily placed here)
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Mesojassus ipsviciensis n. gen. n. sp.2
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"Mesocixiodes brachyclada" = Mesocixiodes termioneura3
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Mesogereon neuropunctatum n. gen. n. sp.2
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Dunstania pulchra n. gen. n. sp.2
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Mesomantidion queenslandicum n. gen. n. sp.2
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Mesophlebia antinodalis n. gen. n. sp.2
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Sphenopteridae | |
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Pteridopsida | |
Polypodiopsida | |
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Ginkgoopsida | |
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Cycadopsida | |
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Peltaspermopsida | |
"Stenopteris elongata" = Rhaphidopteris
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Gymnospermopsida | |
"Stachyopitys annularioides" = Pteruchus johnstonii, Beania geminata, "Sphenopteris superba" = Dicroidium superbum
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