Denmark Hill Insect Bed (Dunstan 1909 collection): Norian, Australia
collected by Dunstan 1909
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Peltaspermopsida
- Peltaspermales
- Umkomasiaceae
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Stenopteris elongata
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replaced by Rhaphidopteris | ||||||||||
very common | ||||||||||
Gymnospermopsida
- Corystospermales
- Corystospermaceae
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Stachyopitys annularioides
Shirley 1898
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synonym of Pteruchus johnstonii | ||||||||||
rare | ||||||||||
Sphenopteris superba
Shirley 1898
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recombined as Dicroidium superbum | ||||||||||
common | ||||||||||
Beania geminata
Shirley 1898
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nomen dubium belonging to Umkomasia | ||||||||||
very common | ||||||||||
Sphenopteridae
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Sphenopteris baileyana
Tenison-Woods 1898
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rare | ||||||||||
Pteridopsida
- Filicales
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Oleandridium lentriculiforme
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rare | ||||||||||
Polypodiopsida
- Marattiales
- Marattiaceae
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Scolecopteris australis
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rare | ||||||||||
Polypodiopsida
- Gleicheniales
- Dipteridaceae
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Dictyophyllum bremerense
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rare | ||||||||||
Polypodiopsida
- Equisetales
- Calamitaceae
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Calamostachys australis
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very rare | ||||||||||
Cycadopsida
- Cycadales
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Taeniopteris daintreei
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very rare | ||||||||||
Taeniopteris tenisonwoodsi
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common | ||||||||||
Cycadopsida
- Pteridospermales
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Thinnfeldia odontopteroides
(Morris 1845)
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very common | ||||||||||
Thinnfeldia indica
Feistmantel 1876
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very common | ||||||||||
Thinnfeldia cf. indica
Feistmantel 1876
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variety media; common | ||||||||||
Ginkgoopsida
- Ginkgoales
- Ginkgoaceae
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Baiera ginkgoides
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common | ||||||||||
Ginkgo bidens
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common | ||||||||||
Ginkgo antartica
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common | ||||||||||
Ginkgo simmondsi
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rare | ||||||||||
Bennettitales
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Pterophyllum multilineatum
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very rare | ||||||||||
Insecta
- Eoblattida
- Mesorthopteridae
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Mesorthopteron locustoides n. gen., n. sp.
Tillyard 1916
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Tillyard 1916 | 1 individual | ||||||||
GSQI 5ab; | ||||||||||
Insecta
- Blattodea
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Blattodea indet.
(Latreille 1810)
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Tillyard 1916 | 1 individual | ||||||||
corrected as Blattaria | ||||||||||
GSQI 7 | ||||||||||
Insecta
- Blattodea
- Mylacridae
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Austromylacrites latus n. gen., n. sp.
Tillyard 1916
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Tillyard 1916 | 1 individual | ||||||||
GSQI 8 (1 measurement) | ||||||||||
Insecta
- Hemiptera
- Archijassidae
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Mesojassus ipsviciensis n. gen., n. sp.
Tillyard 1916
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Tillyard 1916 | 1 individual | ||||||||
GSQI 33 (1 measurement) | ||||||||||
Insecta
- Hemiptera
- Mesogereonidae
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Mesogereon neuropunctatum n. gen., n. sp.
Tillyard 1916
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Tillyard 1916 | 1 individual | ||||||||
GSQI 19 (1 measurement) | ||||||||||
Insecta
- Hemiptera
- Dunstaniidae
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Dunstania pulchra n. gen., n. sp.
Tillyard 1916
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Tillyard 1916 | 1 individual | ||||||||
GSQI 2 (1 measurement) | ||||||||||
Insecta
- Hemiptera
- Hylicellidae
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? Mesorthopteron ? locustoides
Tillyard 1916
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Tillyard 1916 | 1 individual | ||||||||
GSQI 4 | ||||||||||
= Mesocixiodes brachyclada
Tillyard 1922
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Tillyard 1922 | |||||||||
synonym of Mesocixiodes termioneura | ||||||||||
Insecta
- Mecoptera
- Permochoristidae
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Mesochorista proavita n. gen., n. sp.
Tillyard 1916
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Tillyard 1916 | 2 individuals | ||||||||
AM F39231 (Dunstan 32); F39230(29371) in Riek, 1956 (Dunstan coll, arbitrarily placed here) (1 measurement) | ||||||||||
Insecta
- Coleoptera
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Ulomites willcoxi n. gen., n. sp.
Tillyard 1916
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Tillyard 1916 | 1 individual | ||||||||
GSQI 50 (1 measurement) | ||||||||||
Insecta
- Coleoptera
- Trachypachidae
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Ademosyne obtusa n. sp.
Tillyard 1916
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Tillyard 1916 | 1 individual | ||||||||
recombined as Ademosynoides obtusa | ||||||||||
GSQI 9 (1 measurement) | ||||||||||
Ademosynoides striatella n. sp.
Dunstan 1923
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Dunstan 1923 | 1 specimen | ||||||||
GSQI 16 (1 measurement) | ||||||||||
Ademosyne angusta n. sp.
Tillyard 1916
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Tillyard 1916 | 1 individual | ||||||||
recombined as Ademosynoides angusta | ||||||||||
GSQI 15 (not 16, now Ademosynoides striatella) (1 measurement) | ||||||||||
Ademosyne minor
Handlirsch 1906
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Tillyard 1916 | 2 individuals | ||||||||
recombined as Ademosynoides minor | ||||||||||
GSQI 38,39 | ||||||||||
Insecta
- Coleoptera
- Ademosynidae
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Ademosyne congener n. sp.
Tillyard 1916
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Tillyard 1916 | 3 individuals | ||||||||
GSQI 40,41,42 (1 measurement) | ||||||||||
Ademosyne major
Handlirsch 1906
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Tillyard 1916 | 2 individuals | ||||||||
GSQI 36,10 (not 44, A. australiensis) | ||||||||||
Ademosyne punctata n. sp.
Tillyard 1916
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Tillyard 1916 | 1 individual | ||||||||
GSQI 47 (1 measurement) | ||||||||||
Ademosyne australiensis n. sp.
Tillyard 1916
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Tillyard 1916 | 4 individuals | ||||||||
GSQI 12,13,43, 44 (A. major in Tillyard, 1916 according to Dunstan, 1923) (1 measurement) | ||||||||||
Ademosyne olliffi
(Handlirsch 1906)
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Tillyard 1916 | 1 individual | ||||||||
GSQI 35 | ||||||||||
Ademosyne cameroni n. sp.
Tillyard 1916
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Tillyard 1916 | 1 individual | ||||||||
GSQI 46 (1 measurement) | ||||||||||
Insecta
- Coleoptera
- Taldycupedidae
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Mesothoris clathrata n. gen., n. sp.
Tillyard 1916
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Tillyard 1916 | 3 individuals | ||||||||
GSQI 48,49 (not 51, now M. quadripartita) (1 measurement) | ||||||||||
Mesothoris grandis n. sp.
Dunstan 1923
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Dunstan 1923 | 1 specimen | ||||||||
GSQI 54 (1 measurement) | ||||||||||
Insecta
- Coleoptera
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Tillyardiopsis variotuberculata n. sp.
Dunstan 1923
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Dunstan 1923 | 1 specimen | ||||||||
GSQI 66 (1 measurement) | ||||||||||
Insecta
- Coleoptera
- Schizocoleidae
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Mesothoris quadripartita
Dunstan 1923
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Dunstan 1923 | 1 specimen | ||||||||
recombined as Mesolobites quadripartita | ||||||||||
GSQI 51 (formerly M. clathrata in Tillyard, 1916) | ||||||||||
Insecta
- Coleoptera
- Buprestidae
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Mesostigmodera typica
Etheridge and Olliff 1890
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Tillyard 1916 | 1 specimen | ||||||||
GSQI 61 (1 measurement) | ||||||||||
Insecta
- Coleoptera
- Permosynidae
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Ademosyne tumida n. sp.
Tillyard 1916
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Tillyard 1916 | 1 individual | ||||||||
recombined as Platycrossos tumidus | ||||||||||
GSQI 45 (1 measurement) | ||||||||||
Insecta
- Odonata
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Odonata indet.
Fabricius 1793
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Tillyard 1916 | 1 individual | ||||||||
GSQI 6 | ||||||||||
Insecta
- Odonata
- Mesomantidiidae
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Mesomantidion queenslandicum n. gen., n. sp.
Tillyard 1916
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Tillyard 1916 | 1 individual | ||||||||
GSQI 1 (1 measurement) | ||||||||||
Insecta
- Mesophlebiidae
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Mesophlebia antinodalis n. gen., n. sp.
Tillyard 1916
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Tillyard 1916 | 1 individual | ||||||||
GSQI 3 (now NHMUK In.33279) (1 measurement) | ||||||||||
see common names |
Geography
Country: | Australia | State/province: | Queensland |
Coordinates: | 27.6° South, 152.8° East (view map) | ||
Paleocoordinates: | 58.6° South, 101.0° East | ||
Basis of coordinate: | estimated from map | ||
Geographic resolution: | outcrop |
Time
Period: | Triassic | Epoch: | Late/Upper Triassic |
Stage: | Norian | 10 m.y. bin: | Triassic 4 |
Key time interval: | Norian | ||
Age range of interval: | 228.00000 - 208.50000 m.y. ago |
Stratigraphy
Geological group: | Ipswich Coal Measures | Formation: | Blackstone | ||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: 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. |
Lithology and environment
Primary lithology: | lithified sandy siltstone | ||
Includes fossils? | Y | ||
Lithology description: "The fossil insect bed of finely arenaceous shale. Near the outcrop the bed is of a brownish grey colour with iron-stained joints and planes." Dunstan, 1916 Fresher rock is a greenish grey colour. | |||
Environment: | pond | Tectonic setting: | rift |
Geology comments: 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. |
Taphonomy
Modes of preservation: | mold/impression,adpression |
Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
Collection methods: | field collection,survey of museum collection | ||
Reason for describing collection: | taxonomic analysis | ||
Collectors: | Dunstan | Collection dates: | 1909 |
Metadata
Database number: | 111777 | ||
Authorizer: | M. Clapham | Enterer: | J. Karr, M. Clapham |
Modifier: | M. Clapham | Research group: | paleobotany,paleoentomology |
Created: | 2011-06-28 16:20:07 | Last modified: | 2017-05-23 16:34:15 |
Access level: | the public | Released: | 2011-06-28 16:20:07 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
36526. | 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] |
Secondary references:
49881 | B. Dunstan. 1923. Mesozoic insects of Queensland Part I - introduction and Coleoptera. Queensland Geological Survey Publication 273:1-89 [M. Clapham/M. Clapham] | |
49543 | E. F. Riek. 1956. A re-examination of the mecopteroid and orthopteroid fossils (Insecta) from the Triassic beds at Denmark Hill, Queensland, with descriptions of further specimens. Australian Journal of Zoology 4:98-110 [M. Clapham/M. Clapham/M. Clapham] | |
36527 | R. J. Tillyard. 1916. Descriptions of the fossil Insects; Mesozoic and Tertiary Insects of Queensland and New South Wales. Descriptions of the fossil Insects and stratigraphical features. Queensland Geological Survey (253)11-70 [M. Clapham/J. Karr/J. Karr] | |
36601 | R. J. Tillyard. 1922. Mesozoic Insects of Queensland. No. 9 Orthoptera, and additions to the Protorthoptera, Odonata, Hemiptera and Planipennia. The Proceedings of the Linnean Society of New South Wales 47:447-470 [M. Clapham/J. Karr] |