Horizon 7, Drillhole 83/2-2A, Daly Basin, Tindall Limestone: Middle Cambrian, Australia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Paterinata
- Paterinida
- Paterinidae
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Micromitra nerranubawu
Kruse 1990
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Lingulata
- Lingulida
- Obolidae
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Westonia nyapungensis
Kruse 1990
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Lingulata
- Lingulida
- Kyrshabaktellidae
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Kyrshabaktella mudedirri
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Lingulata
- Lingulida
- Acrothelidae
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Eothele napuru
Kruse 1990
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Lingulata
- Acrotretida
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Hadrotreta djagoran
(Walcott 1902)
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Hyolithida
- Angusticornidae
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Nganki wumirri
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Orthothecida
- Circothecidae
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Guduguwan hardmani
(Foord 1890)
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Larawa djanin
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Helcionelloida
- Helcionellidae
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Latouchella cf. accordionata
Runnegar and Jell 1976
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| see common names | |||||||
Geography
| Country: | Australia | State/province: | Northern Territory |
| Coordinates: | 13.9° South, 131.2° East (view map) | ||
| Paleocoordinates: | 26.8° North, 177.4° East | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | small collection |
Time
| Period: | Cambrian | Epoch: | Miaolingian |
| 10 m.y. bin: | Cambrian 3-4 | ||
| Key time interval: | Middle Cambrian | ||
| Age range of interval: | 509 - 497 m.y. ago |
Stratigraphy
| Geological group: | Daly River | Formation: | Tindall Limestone | ||
| Local section: | Tipperary | Local bed: | 7 | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Late Ordian to early Templetonian: Considered to be Middle Cambrian according to Cooper 2004. | |||||
Lithology and environment
| Primary lithology: | gray lithified "limestone" |
| Secondary lithology: | lithified packstone |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: distintive 'two tone' lithology, compromising centrimetre-scale interbeds of light gray lime wackstone and darker gray dolomitic siltstone; bioclastic packstone | |
| Environment: | open shallow subtidal |
| Geology comments: The carbonate beds crop out as low mounds, benches and pavements, in dolines or as towers; beds marking periods of unrestricted open shelf sedimentation | |
Taphonomy
| Modes of preservation: | body,cast,replaced with silica |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | core,acetic,field collection |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 60000 | ||
| Authorizer: | W. Kiessling | Enterer: | T. Schossleitner |
| Modifier: | W. Kiessling | Research group: | marine invertebrate |
| Created: | 2006-04-26 08:07:44 | Last modified: | 2006-09-13 16:57:11 |
| Access level: | the public | Released: | 2006-04-26 08:07:43 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 17229. | P. D. Kruse. 1990. Cambrian palaeontology of the Daly Basin. Northern Territory Geological Survey 7:1-58 [W. Kiessling/T. Schossleitner] |