Kalbarri (UWA collection): Bartonian - Priabonian, Australia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
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? Acarinina sp.
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Hedbergellidae
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? Turborotalia sp.
(Cushman and Burmudez 1949)
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Globigerinidae
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Subbotina linaperta
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Subbotina inaequispira
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Subbotina eocaena
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transitional to S. corpulenta | ||||||||||
Globigerinatheka index
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? Catapsydrax sp.
Bolli et al. 1957
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Demospongiae
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Demospongea indet.
(Sollas 1875)
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Cephalopoda
- Nautilida
- Nautilidae
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Nautilida indet.
Agassiz 1847
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= Eutrephoceras sp.
Hyatt 1894
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Darragh and Kendrick 2008 | |||||||||
Cephalopoda
- Nautilida
- Aturiidae
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Aturia sp.
Bronn 1838
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= Aturia clarkei
Teichert 1944
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Darragh and Kendrick 2008 | |||||||||
unclassified
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Bryozoa indet.
Ehrenberg 1831
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see common names |
Geography
Country: | Australia | State/province: | Western Australia |
Coordinates: | 27.8° South, 114.3° East (view map) | ||
Paleocoordinates: | 48.7° South, 99.2° East | ||
Basis of coordinate: | estimated from map | ||
Geographic resolution: | outcrop |
Time
Period: | Paleogene | Epoch: | Eocene |
Stage: | Bartonian - Priabonian | 10 m.y. bin: | Cenozoic 3 |
Key time interval: | Bartonian - Priabonian | ||
Age range of interval: | 41.2 - 33.9 m.y. ago |
Stratigraphy
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: Collectively, the planktonic foraminifers indicate that the newly discovered site belongs within the P13 to P16 zonal range (40.5 – 34.0 Ma BKSA95). |
Lithology and environment
Primary lithology: | poorly lithified cherty/siliceous mudstone |
Secondary lithology: | poorly lithified cherty/siliceous sandstone |
Lithology description: Iron-stained siliceous argillites with scattered large fragments of silicified bryozoans as well as large (up to about 30 cm) intact siliceous sponges. A relatively clean sponge spicule dominated arenite that includes silicified calcareous skeletal grains (including abundant foraminifers, and common gastropods and bryozoan fragments) is also present. | |
Environment: | transition zone/lower shoreface |
Geology comments: Because of the abundance of robust diverse miliolid foraminifers and the low planktonic percentage (about 10%), the new unit probably accumulated in inner neritic conditions (following Murray 1991), at water depths between about 10 and 30 m (based on unpublished observations of DW Haig for present-day assemblages along the Western Australian coast). |
Taphonomy
Modes of preservation: | body,original silica,replaced with silica |
Size of fossils: | macrofossils |
Collection methods and comments
Reason for describing collection: | general faunal/floral analysis |
Collection method comments: Repository: University of Western Australia |
Metadata
Database number: | 179822 | ||
Authorizer: | M. Clapham | Enterer: | M. Clapham |
Modifier: | M. Clapham | Research group: | marine invertebrate |
Created: | 2016-07-02 14:18:39 | Last modified: | 2017-05-23 16:34:15 |
Access level: | the public | Released: | 2016-07-02 14:18:39 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
59651. | D. W. Haig and A. J. Mory. 2003. New record of siliceous, marine, later Eocene from Kalbarri, Western Australia. Journal of the Royal Society of Western Australia 86:107-113 [M. Clapham/M. Clapham] |
Secondary references:
59650 | T. A. Darragh and G. W. Kendrick. 2008. Silicified Eocene molluscs from the Lower Murchison district, southern Carnarvon Basin, Western Australia. Records of the Western Australian Museum 24:217-246 [M. Clapham/M. Clapham] |