Tom O's Quarry: Late Oligocene, Australia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Diprotodontia
- Wynyardiidae
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Namilamadeta snideri n. sp.
Rich and Archer 1979
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Rich and Archer 1979 | ||||||
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Mammalia
- Diprotodontia
- Ektopodontidae
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Ektopodon cf. stirtoni
Pledge 1986
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27 specimens | ||||||
| see common names | |||||||
Geography
| Country: | Australia | State/province: | South Australia |
| Coordinates: | 31.1° South, 140.1° East (view map) | ||
| Paleocoordinates: | 46.0° South, 136.0° East | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | small collection |
Time
| Period: | Paleogene | Epoch: | Oligocene |
| Stage: | Chattian | 10 m.y. bin: | Cenozoic 4 |
| *Period: | Middle Tertiary - Middle Tertiary | *Epoch: | Middle Miocene |
| Key time interval: | Late Oligocene | ||
| Age range of interval: | 27.82 - 23.03 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Namba | ||||
| Stratigraphy comments: Tarkarooloo Local Fauna
The accepted age for the Namba formation has varied from late Oligocene-early Miocene. Woodburne et al. 1994 suggested a late Oligocene age for the correlated faunas of Zone A in the Etadunna Formation. Martin 1990 also suggested that an early Miocene age was unlikely based on pollen data. Megirian et al. 2010 also used a late Oligocene age of 28-24Ma for the Namba Formation. |
Lithology and environment
| Primary lithology: | gypsiferous sandstone |
| Lithology description: fine-grained sand containing gypsum crystals and numerous clasts of the host clay | |
| Environment: | "channel" |
Taphonomy
| Modes of preservation: | body,original phosphate |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 28308 | ||
| Authorizer: | M. Uhen, J. Alroy | Enterer: | M. Uhen, A. Garcia Selles |
| Modifier: | G. Varnham | Research group: | vertebrate |
| Created: | 2003-02-06 10:18:28 | Last modified: | 2022-04-26 09:56:17 |
| Access level: | the public | Released: | 2003-02-06 10:18:28 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 6878. | 5% 24600 | N. S. Pledge. 1986. A New Species Of Ektopodon (Marsupialia; Phalangeroidea) from the Miocene of South Australia. University of California Publications in Geological Sciences 131:43-67 [M. Uhen/M. Uhen/M. Carrano] |
Secondary references:
| 43128 | T. H. V. Rich and M. Archer. 1979. Namilamadeta snideri, a new diprotodontan (Marsupialia, Vombatoidea) from the medial Miocene of South Australia. Alcheringa 3:197-208 [J. Alroy/A. Garcia Selles] |