Denmark Hill Insect Bed Explained

Denmark Hill Insect Bed
Type:Geological formation
Period:Carnian
Age:Carnian
Prilithology:Shale
Namedfor:Denmark Hill
Region:Ipswich
Country: Australia
Coordinates:-27.6°N 152.8°W
Paleocoordinates:-59°N 105.8°W
Unitof:Blackstone Formation
Underlies:Bluff coal seam
Overlies:Aberdare coal seam
Thickness:15cm (06inches)

The Denmark Hill Insect Bed is a Triassic fossil locality in the Denmark Hill Conservation Park of Ipswich, Queensland, Australia.[1]

Description

It belongs to the Blackstone Formation (Ipswich Coal Measures Group) dated to the Carnian age (228.0 - 216.5 million years ago). Its coordinates are . Its paleogeographic coordinates are .

The fossiliferous layer is located in between the Bluff coal seam and the Aberdare coal seam. It is 15cm (06inches) thick and is composed greenish grey to brownish grey arenaceous shale. The existence of coal seams above and below the layer indicates that it may have once been a lake (lacustrine environment).[2]

The site is noted as a source of well-preserved insect fossils.[3] [4]

See also

Notes and References

  1. Web site: Denmark Hill Conservation Park. Discover-Our-Ipswich.com. 11 August 2011. https://web.archive.org/web/20110731034845/http://www.discover-our-ipswich.com/denmarkhillconservationpark.html. 31 July 2011. dead.
  2. Web site: Denmark Hill Insect Bed. Paleobiology Database. 11 August 2011.
  3. 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. 11 August 2011 .
  4. E.F. Riek. 1967. On the Occurrence of Fossil Insects in the Mesozoic Rocks of Western Australia. Records of the Australian Museum . 27. 16. 311 - 312. 10.3853/j.0067-1975.27.1968.450. 0067-1975. 11 August 2011 . free.