Blackstone Formation, Australia
| Blackstone Formation | |
|---|---|
| Stratigraphic range: Carnian-Norian ~ | |
| Type | Geological formation |
| Unit of | Ipswich Coal Measures |
| Sub-units | Denmark Hill Insect Bed, Striped Bacon Seam Member |
| Underlies | Unconformity with Raceview Formation and Aberdare Conglomerate |
| Overlies | Tivoli Formation |
| Thickness | 200–240 m (660–790 ft) |
| Lithology | |
| Primary | Shale |
| Other | Siltstone, coal, tuff |
| Location | |
| Coordinates | 27°36′S 152°48′E / 27.6°S 152.8°E |
| Approximate paleocoordinates | 58°36′S 101°00′E / 58.6°S 101.0°E |
| Region | Ipswich |
| Country |  Australia |
| Type section | |
| Named for | Blackstone, Queensland |
  Blackstone Formation, Australia (Australia)  Blackstone Formation, Australia (Queensland) | |
The Blackstone Formation is a geologic formation of the Ipswich Coal Measures Group in southeastern Queensland, Australia, dating to the Carnian to Norian stages of the Late Triassic. The shales, siltstones, coal and tuffs were deposited in a lacustrine environment. The Blackstone Formation contains the Denmark Hill Insect Bed.
Fossil content
Vertebrates
Lungfish
| Dipnoans of the Blackstone Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | State | Abundance | Notes | Images | |
| Ceratodus | C. robustus |  | ||||
Invertebrates
| Insects of the Blackstone Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Mesochorista[1] | M. proavita | Ipswich | A Permochoionid |  | ||
| Mesodiphthera | M. grandis | Tettigarctid cicada | ||||
| Tardilly | T. dunstani | |||||
| T. prosboloides | ||||||
| Phanerogramma | P. australis | Dermapterid earwig | ||||
| Dinmopsylla | D. semota | Dinmore clay pit | Archipsyllid Permopsocid | |||
| Mesopsyche | M. triareolata | Dinmore clay pit | Mesopsychid mecopteran | |||
Ichnofossils
See also
References
- ^ E.F. Riek (1955). "A Re-examination of the Mecopteroid and Orthopteroid Fossils (Insecta) from the Triassic Beds at Denmark Hill, Queensland, with Descriptions of Further Specimens" (PDF). Australian Journal of Zoology. 4: 98–110. Retrieved 11 August 2011.
- ^ Staines & Woods, 1964