Kalbarri (UWA collection): Bartonian - Priabonian, Australia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Demospongiae
|
||||||||||
|
Demospongea indet.
(Sollas 1875)
|
||||||||||
| corrected as Demospongiae | ||||||||||
|
Cephalopoda
- Nautilida
- Aturiidae
|
||||||||||
|
Aturia sp.
Bronn 1838
|
||||||||||
|
= Aturia clarkei
Teichert 1944
|
Darragh and Kendrick 2008 | |||||||||
|
Cephalopoda
- Nautilida
- Nautilidae
|
||||||||||
|
Nautilida indet.
Agassiz 1847
|
||||||||||
|
= Eutrephoceras sp.
Hyatt 1894
|
Darragh and Kendrick 2008 | |||||||||
|
unclassified
|
||||||||||
|
Bryozoa indet.
Ehrenberg 1831
|
||||||||||
|
Globigerinidae
|
||||||||||
|
Globigerinatheka index
|
||||||||||
|
? Catapsydrax sp.
Bolli et al. 1957
|
||||||||||
|
Subbotina linaperta
|
||||||||||
|
Subbotina inaequispira
|
||||||||||
|
Subbotina eocaena
|
||||||||||
| transitional to S. corpulenta | ||||||||||
|
unclassified
|
||||||||||
|
? Acarinina sp.
|
||||||||||
|
Hedbergellidae
|
||||||||||
|
? Turborotalia sp.
(Cushman and Burmudez 1949)
|
||||||||||
| original and current combination Globorotalia (Turborotalia) | ||||||||||
| 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 |
| 10 m.y. bin: | Cenozoic 3 | ||
| Key time interval: | Bartonian - Priabonian | ||
| Age range of interval: | 41.20000 - 33.90000 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] |