Eromanga Basin L717 (Cretaceous to of Australia)

Where: Queensland, Australia (23.5° S, 143.2° E: paleocoordinates 52.8° S, 134.7° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Winton Formation (Rolling Downs Group), Late/Upper Cenomanian to Late/Upper Cenomanian (99.6 - 89.3 Ma)

• 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 Moore & Pitt (1984), on the basis of unpublished palynological data, suggested that the uppermost beds of this formation in central parts of the basin may have been deposited in the late Cenomanian or early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.

• bed-level stratigraphic resolution

Environment/lithology: fluvial; brown, yellow siltstone and fine-grained, brown, yellow sandstone

• 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.
• 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.

Size class: macrofossils

Preservation: mold/impression, original carbon

Collection methods: surface (in situ),

• Illustrated specimens are located in either the Queensland Museum (QMF) or the National Museum of Victoria (MNVP)

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 21115: authorized by Hallie Sims, entered by Heather Lindon on 18.06.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Equisetopsida
 Pinidae - Pinidae
Araucaria sp. de Jussieu 1789
microsporangiate cones
Araucaria sp. de Jussieu 1789
ovulate cone scales
Sphenopteridae
  - Sphenopteridae
Sphenopteris sp. Sternberg 1825
(Brongniart) Sternberg
Angiospermae
 Rosids -
? Fagales "sp. B" Engler 1892
Angiosperm sp. B
? Fagales "sp. C" Engler 1892
Angiosperm sp. C
? Fagales "sp. D" Engler 1892
Angiosperm sp. D
? Fagales "sp. G" Engler 1892
Angiosperm sp. G
 Coniferales -
Coniferales "sp. A"
Conifer sp. A
 Coniferales - Podocarpaceae
Elatocladus cf. plana Seward 1918 podocarp
(Feistmantel)Seward
Polypodiopsida
  -
Cladophlebis sp. Brongniart 1849
Brongniart
Pteridopsida
 Filicales -
Filicales indet.
indeterminate fern pinnule