Melaleuca Inlet: Late Pleistocene, Australia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Angiospermae
- Oxalidales
- Cunoniaceae
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Eucryphia sp. cuticle
Cavanilles 1798
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Barnes and Jordan 2000 | |||||||||
| Dispersed cuticle | ||||||||||
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unclassified
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Banksia kingii leaf, seed/fruit
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Jordan and Hill 1991 | |||||||||
| Leaves, cuticles and infrutescences | ||||||||||
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Angiospermae
- Proteales
- Proteaceae
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Lomatia tasmanica
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unclassified
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Banksia cf. kingii
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Angiospermae
- Proteales
- Proteaceae
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Hakea sp.
Schrader 1798
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Cenarrhenes nitida
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Agastachys odorata
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| see common names | ||||||||||
Geography
| Country: | Australia | State/province: | Tasmania |
| Coordinates: | 43.5° South, 146.1° East (view map) | ||
| Paleocoordinates: | 43.5° South, 146.1° East | ||
| Basis of coordinate: | estimated from map |
Time
| Period: | Quaternary | Epoch: | Pleistocene |
| Stage: | Late Pleistocene | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Late Pleistocene | ||
| Age range of interval: | 0.129 - 0.0117 m.y. ago |
Stratigraphy
| Stratigraphy comments: Coniferous wood form the lens containing leaves has been 14C dated at 38800 +- 1300 B.P (S.U.A 5038). Part of a fossil Banksia infructescence has been dated at 34000 +- 500 B.P (S.U.A. 2947). Colhoun (1986) showed that older 14C dates from western Tasmania can significantly underestimate the age of the deposits due to contamination by younger organic material present in soil water. 14C ages should therefore be treated as minimum ages. Palynological evidence from the lens that contained the leaves is consistent with an interstadial climate possibly from the last glaciation (M.K. Macphail pers. comm.). The Melaleuca Inlet deposit is therefore at least 34000 years old and probably from an interstadial period of the last or second last glaciation. (Jordan et al.1991) |
Lithology and environment
| Primary lithology: | not reported |
| Lithology description: Leaves of Jordan et. al., 1991 were derived form a single sedimentary lens and the infructescences from a separate lens nerby (C.D. King, pers. comm.). The sediments are composed of large, water-rounded quartz and schist fragments and are probably derived from a high-energy river system. | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | adpression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | all macrofossils |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 167029 | ||
| Authorizer: | C. Jaramillo | Enterer: | C. Jaramillo |
| Modifier: | C. Jaramillo | ||
| Created: | 2015-03-06 12:35:16 | Last modified: | 2015-04-17 10:22:18 |
| Access level: | the public | Released: | 2015-03-06 12:35:16 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 54426. | G. J. Jordan. 1995. Early Middle Pleistocene leaves of extinct and extant Proteaceae from western Tasmania, Australia. Botanical Journal of the Linnean Society 118:19-35 [C. Jaramillo/A. Cárdenas/C. Jaramillo] |
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] | |
| 55076 | G. J. Jordan and R. S. Hill. 1991. Two new Banksia species from Pleistocene sediments in western Tasmania. Australian Systematic Botany (4)499-511 [C. Jaramillo/C. Jaramillo] |