Rylance No. 5 Opencut Colliery: Norian, Australia
collected 1983
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Reptilia
- Grallatoridae
|
|||||||
|
cf. Grallator sp.
Hitchcock 1858
|
6 specimens | ||||||
| see common names | |||||||
Geography
| Country: | Australia | State/province: | Queensland |
| Coordinates: | 27.6° South, 152.9° East (view map) | ||
| Paleocoordinates: | 58.6° South, 101.3° East | ||
| Basis of coordinate: | based on nearby landmark | ||
| Altitude: | 71 meters | ||
| Geographic resolution: | small collection |
Time
| Period: | Triassic | Epoch: | Late/Upper Triassic |
| Stage: | Norian | 10 m.y. bin: | Triassic 4 |
| *Period: | Late/Upper Triassic | ||
| *International age/stage: | Middle Carnian - Late/Upper Carnian | ||
| Key time interval: | Norian | ||
| Age range of interval: | 227.00000 - 208.50000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Geological group: | Ipswich Coal Measures | Formation: | Blackstone | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: footprints are probably from near the Rob Roy seam at the base of the Blackstone Formation, or near the Striped Bacon seam 15-33 m higher in section. Blackstone Formation is within the coal-bearing Brassall Subgroup of the Ipswich Coal Measures. | |||||
Lithology and environment
| Primary lithology: | gray lithified siltstone | ||
| Secondary lithology: | desiccation cracks,planar lamination,gray,blue lithified "shale" | ||
| Includes fossils? | Y | ||
| Includes fossils? | Y | ||
| Lithology description: "The footprints occur in extremely fragile pieces of siltstone and shale...Evidently the footprints were impressed in a firm and unyielding substrate, now represented by a paper-thin sheet of dark grey shale overlying finely laminated siltstone of paler blue-grey colour. The shale parting has an uneven surface, with extensive dessication cracks and irregular swellings, hollows and dimples." | |||
| Environment: | terrestrial indet. | Tectonic setting: | intermontane basin |
Taphonomy
| Modes of preservation: | mold/impression,trace |
| Size of fossils: | macrofossils |
| Spatial orientation: | life position |
| Preservation of anatomical detail: | poor |
| Disassociated major elements: | all |
| Spatial resolution: | autochthonous |
Collection methods and comments
| Collection methods: | salvage,surface (float),peel or thin section,field collection |
| Reason for describing collection: | taxonomic analysis | Collection dates: | 1983 |
Metadata
| Also known as: | Dinmore tracksite | ||
| Database number: | 28614 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2003-02-20 11:49:26 | Last modified: | 2022-02-18 09:58:10 |
| Access level: | the public | Released: | 2003-02-20 11:49:26 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 7895. | T. Thulborn. 1998. Australia's earliest theropods: footprint evidence in the Ipswich Coal Measures (Upper Triassic) of Queensland. GAIA 15:301-311 [M. Carrano/M. Carrano/M. Carrano] |
Secondary references:
| 18059 | ETE | T. H. Rich and P. Vickers-Rich. 2003. A Century of Australian Dinosaurs. Queen Victoria Museum and Art Gallery and Monash Science Centre, Monash University 1-124 [M. Carrano/M. Carrano] |
| 79967 | A. Romilio, H. Klein, A. Jannel and S. W. Salisbury. 2021. Saurischian dinosaur tracks from the Upper Triassic of southern Queensland: possible evidence for Australia’s earliest sauropodomorph trackmaker. Historical Biology [M. Carrano/M. Carrano] |