Eromanga Basin L406: Late/Upper Cenomanian - Early/Lower Turonian, Australia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Araucaria cf. mesozoica axis, leaf Walkom 1918
Walkom
cf. Austrosequoia wintonensis fertile axis, leaf Peters and Christophel 1978
Peters & Christophel
Magnoliopsida
Magnoliopsida informal sp. A leaf Cronquist et al. 1996
Angiosperm sp. A
Coniferales
Coniferales informal sp. A sterile axis, leaf
Conifer sp. A
Angiospermae - Fagales
? Fagales informal sp. B leaf Engler 1892
Angiosperm sp. B
? Fagales informal sp. F leaf Engler 1892
Angiosperm sp. F
Cycadopsida - Cycadales
Taeniopteris sp. leaf Brongniart 1828
Brongniart
Equisetopsida - Araucariaceae
aff. Araucaria sp. non-seed repro de Jussieu 1789
microsporangiate cones
aff. Araucaria sp. non-seed repro de Jussieu 1789
ovulate cone scales
see common names

Geography
Country:Australia State/province:Queensland
Coordinates: 22.7° South, 142.3° East (view map)
Paleocoordinates:52.0° South, 133.4° East
Basis of coordinate:stated in text
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
*Period:Middle Cretaceous
Key time interval:Late/Upper Cenomanian - Early/Lower Turonian
Age range of interval:100.50000 - 89.80000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Geological group:Rolling Downs Formation:Winton
Stratigraphic resolution:bed
Stratigraphy comments: The Winton Formation has yielded spore-pollen assemblages belonging to the Phimopollenites pannosus or succeeding Appendicisporties distocarinatus zone of probable late Albian to Cenomanian age (Dettmann & Playford 1969; Burger, 1970; Morgan, 1980; Helby et al., 1987). Moore & Pitt (1984), on the basis of unpublished palynological data, suggested that the uppermost beds of this formation in central parts of the basin may have been deposited in the late Cenomanian or early Turonian.
Lithology and environment
Primary lithology:brown,yellow siltstone
Secondary lithology:fine,brown,yellow sandstone
Includes fossils?Y
Includes fossils?Y
Lithology description: Plant fossils are preserved as impressions in buff, pale yellow, dark brown, or pink, siltstones or fine-grained lithic sandstones. Small cross laminae and parallel laminae are evident in the host rocks.
Environment:fluvial indet.
Geology comments: Small cross laminae and parallel laminae are evident in the host rocks and together with the relatively undamaged leaf remains and numerous slender invertebrate (?oligochaete) trails, they suggest relatively low enery, ?lacustrine depostional environments.
Taphonomy
Modes of preservation:cast,mold/impression,original carbon
Size of fossils:macrofossils
Temporal resolution:snapshot
Spatial resolution:parautochthonous
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:surface (in situ),field collection
Reason for describing collection:taxonomic analysis
Collection method comments: Illustrated specimens are located in either the Queensland Museum (QMF) or the National Museum of Victoria (MNVP)
Metadata
Database number:21113
Authorizer:H. Sims Enterer:H. Lindon, J. Cassara
Modifier:G. Varnham Research group:paleobotany
Created:2002-06-18 04:54:26 Last modified:2022-05-12 03:10:51
Access level:the public Released:2002-06-18 04:54:26
Creative Commons license:CC BY
Reference information

Primary reference:
6474. S. McLoughlin, A. N. Drinnan, and A. C. Rozefelds. 1995. A Cenomanian Flora from the Winton Formation, Eromanga Basin, Queensland, Australia. Memoirs of the Queensland Museam 38(1):273-313 [H. Sims/H. Lindon/H. Lindon]