Lea River: Early Oligocene, Australia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Angiospermae
- Oxalidales
- Cunoniaceae
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Eucryphia reticulata n. sp. seed/fruit
Barnes and Jordan 2000
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Barnes and Jordan 2000 | |||||||||
Eucryphia leaensis n. sp. leaf, cuticle
Barnes and Jordan 2000
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Barnes and Jordan 2000 | |||||||||
Angiospermae
- Proteales
- Proteaceae
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Euproteaciphyllum papillosum n. sp. leaf, cuticle
Jordan et al. 1998
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Jordan et al. 1998 | |||||||||
Orites milliganoides n. sp. leaf, cuticle
Jordan et al. 1998
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Jordan et al. 1998 | |||||||||
Orites scleromorpha n. sp. leaf, cuticle
Jordan et al. 1998
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Jordan et al. 1998 | |||||||||
Coniferales
- Cupressaceae
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Fitzroya tasmanensis n. sp.
Hill and Whang 1996
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Hill and Whang 1996 | |||||||||
Synonyms: Fitzroya acutifolius, Dacrycarpus acutifolius | ||||||||||
Libocedrus leaensis n. sp. sterile axis, cuticle
Paull and Hill 2009
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Paull and Hill 2009 | |||||||||
Athrotaxis mesibovii n. sp.
Hill et al. 1993
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Equisetopsida
- Araucariaceae
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Agathis sp. cuticle
Salisbury 1807
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Hill et al. 2008 | |||||||||
Agathis brevigongylodes cuticle
Hill et al. 2008
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Hill et al. 2008 | |||||||||
see common names |
Geography
Country: | Australia | State/province: | Tasmania |
Coordinates: | 41.5° South, 145.7° East (view map) | ||
Paleocoordinates: | 58.3° South, 145.0° East | ||
Basis of coordinate: | stated in text | ||
Altitude: | 670 meters |
Time
Period: | Paleogene | Epoch: | Oligocene |
Stage: | Rupelian | 10 m.y. bin: | Cenozoic 4 |
Key time interval: | Early Oligocene | Pollen zone: | Proteacidites tuberculatus |
Age range of interval: | 33.9 - 27.82 m.y. ago |
Stratigraphy
Stratigraphy comments: Early Oligocene sediments on the Lea River, north-western Tasmania (Jordan et al. 1998).
The sediment has been dated by palynological correlation as Oligocene (M.K. Macphail pers. comm.). |
Lithology and environment
Primary lithology: | siltstone |
Lithology description: The fossil bearing sediments are exposed in the relatively rapidly eroding bank of the Lea River. Conifer fossils from Hill et al. 2003 and Hill et al. 2008 were found in siltstone in the lower portion of the exposure and in loose blocks near the water line. | |
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | adpression |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | chemical,peroxide |
Reason for describing collection: | taxonomic analysis |
Metadata
Database number: | 166597 | ||
Authorizer: | C. Jaramillo | Enterer: | A. Cárdenas, C. Jaramillo |
Modifier: | C. Jaramillo | ||
Created: | 2015-02-19 09:18:58 | Last modified: | 2015-05-15 10:30:36 |
Access level: | the public | Released: | 2015-02-19 09:18:58 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
54423. | R. S. Hill, G. J. Jordan, and R. J. Carpenter. 1993. Taxodiaceous Macrofossils from Tertiary and Quaternary Sediments in Tasmania. Australian Systematic Botany 6(3):237-249 [C. Jaramillo/A. Cárdenas] |
Secondary references:
54703 | R. W. Barnes and G. J. Jordan. 2000. Eucryphia (Cunoniaceae) Reproductive and Leaf Macrofossils from Australian Cainozoic Sediments. Australian Systematic Botany 13(3):373-394 [C. Jaramillo/C. Jaramillo] | |
55313 | R. S. Hill, T. Lewis, R. J. Carpenter and S. S. Whang. 2008. Agathis (Araucariaceae) macrofossils from Cainozoic sediments in south eastern Australia. Australian Systematic Botany 21:162-177 [C. Jaramillo/C. Jaramillo] | |
55281 | R. S. Hill and R. Paull. 2003. Fitzroya (Cupressaceae) macrofossils from Cenozoic sediments in Tasmania, Australia. Review of Palaeobotany and Palynology 126:145-152 [C. Jaramillo/C. Jaramillo] | |
54384 | R. S. Hill and S. S. Whang. 1996. A New Species of Fitzroya (Cupressaceae) from Oligocene Sediments in North-western Tasmania. Australian Systematic Botany 9(6):867-875 [C. Jaramillo/A. Cárdenas/A. Cárdenas] | |
54441 | G. J. Jordan, R. J. Carpenter, and R. S. Hill. 1998. The Macrofossil Record of Proteaceae in Tasmania: a Review with New Species. Australian Systematic Botany 11(4):465-501 [C. Jaramillo/A. Cárdenas] | |
54757 | R. Paull and R. S. Hill. 2009. Libocedrus Macrofossils from Tasmania (Australia). International Journal of Plant Sciences 170(3):381-399 [C. Jaramillo/C. Jaramillo] |