Sample 7347, Mt Murray, Georgina Basin, Thorntonia Area: Templetonian - Floran, Australia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Hyolithida
- Hyolithidae
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? Sololites kankari
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2 specimens | ||||||
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Yalarrnga mara
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4 specimens | ||||||
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Hyolithomorpha
- Sulcavitida
- Inflaticornidae
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? Yacutolituus rakatju
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1 specimen | ||||||
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Orthothecimorpha
- Circothecida
- Turcuthecidae
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Loculitheca kunka
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1 specimen | ||||||
| see common names | |||||||
Geography
| Country: | Australia | State/province: | Queensland |
| Coordinates: | 21.8° South, 140.0° East (view map) | ||
| Paleocoordinates: | 25.5° North, 168.9° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | small collection |
Time
| Period: | Cambrian | Epoch: | Miaolingian |
| Stage: | Wuliuan - Drumian | 10 m.y. bin: | Cambrian 3 - Cambrian 4 |
| Key time interval: | Templetonian - Floran | ||
| Age range of interval: | 507.8 - 503 m.y. ago |
Stratigraphy
| Formation: | Beetle Creek | Member: | Monastery Creek Phosphorite | ||
| Local section: | Duchess Embayment | Local bed: | 7347 | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: late Triplagnostus gibbus to early Acidusus atavus Zone, unknown position within member | |||||
Lithology and environment
| Primary lithology: | phosphatic lithified cherty/siliceous "shale" |
| Secondary lithology: | lithified phosphorite |
| Lithology description: thin bedded calcareous and siliceous phosphorite (laminated to medium bedded, indurated to friable, brown, grey, white, yellow or pink), phosphatic chert and chert, phosphatic and siliceous siltstone and shale (laminated to thin bedded, indurated to fissile to friable), together with shale and fetid limestone. The phosphorites include collophane calcimudstone and pelletal grainstone types. | |
| Environment: | marine indet. |
| Geology comments: intracratonic basin; deposited in the more hypersaline shoal areas of a restricted marine shelf, shoals were shallow submergent to semi-emergent within a dominantly calcareous sedimentary regime; phosphoritic sediments were locally winnowed, reworked and sorted to accumulate in raised-energy environments within lagoons and embayments. Phosphogenesis on semi-emergent falts generated nodules, hardgrounds, phosphocretes and phosphatic calcimudstone. | |
Taphonomy
| Modes of preservation: | replaced with phosphate |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils,difficult macrofossils |
| Collection methods: | bulk,field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Collection method comments: All material is housed in the Australian Geological Survey Organisation (AGSO) or in the Institut für Paläontologie, Universität Bonn (IPB)
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Metadata
| Database number: | 70021 | ||
| Authorizer: | W. Kiessling | Enterer: | T. Schossleitner |
| Modifier: | M. Uhen | Research group: | marine invertebrate |
| Created: | 2007-03-14 09:08:25 | Last modified: | 2018-11-18 12:00:54 |
| Access level: | the public | Released: | 2007-03-14 09:08:25 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 23499. | P. D. Kruse. 2002. Biostratigraphic potential of Middle Cambrian hyoliths from the eastern Georgina Basin. Alcheringa 26(3):353-398 [W. Kiessling/T. Schossleitner] |