Molluscan assemblages, Aldabra Atoll, Aldabra Limestone 4: Late Pleistocene, Seychelles
collected 1969
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Ulvophyceae
- Bryopsidales
- Halimedaceae
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Halimeda sp.
Lamouroux 1812
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Bivalvia
- Arcida
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Arcacea indet.
Lamarck 1809
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| scarce | ||||||||||
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Bivalvia
- Cardiida
- Chamidae
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| scarce | ||||||||||
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Bivalvia
- Cardiida
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Veneracea indet.
Rafinesque 1815
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| scarce | ||||||||||
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Bivalvia
- Cardiida
- Cardiidae
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Tridacna sp.
Bruguière 1797
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| scarce | ||||||||||
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Bivalvia
- Lucinida
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Lucinacea indet.
Fleming 1828
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| scarce | ||||||||||
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Gastropoda
- Thaididae
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| low abundance | ||||||||||
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Gastropoda
- Cerithiidae
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| low abundance | ||||||||||
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Cerithium echinatum
Lamarck 1822
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| low abundance | ||||||||||
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Gastropoda
- Cypraeidae
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Cypraea helvola
Linnaeus 1758
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| low abundance | ||||||||||
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Gastropoda
- Neogastropoda
- Columbellidae
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Columbella turturina
Lamarck 1822
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| low abundance | ||||||||||
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Gastropoda
- Turbinidae
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Turbo argyrostomus
Linnaeus 1758
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35 %-individuals | |||||||||
| low abundance | ||||||||||
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Hydrozoa
- Milleporina
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| common | ||||||||||
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Anthozoa
- Scleractinia
- Acroporidae
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Acropora sp.
Oken 1815
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| common | ||||||||||
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Anthozoa
- Scleractinia
- Faviidae
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Favia sp.
Oken 1815
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| common | ||||||||||
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Anthozoa
- Scleractinia
- Merulinidae
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Platygyra sp.
Ehrenberg 1834
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| common | ||||||||||
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Goniastrea sp.
Milne-Edwards and Haime 1848
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| frequent | ||||||||||
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Hydnophora sp.
Fischer de Waldheim 1807
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| common | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Seychelles |
| Coordinates: | 9.4° South, 46.4° East (view map) |
| Paleocoordinates: | |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | local area |
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 | ||
| Age estimate: | 125 Ka (U/Th) |
Stratigraphy
| Formation: | Aldabra Limestone | ||||
| Stratigraphy comments: 125 000 years (Thompson and Walton 1972) |
Lithology and environment
| Primary lithology: | "limestone" |
| Lithology description: facies 4: Goniastrea-dominated facies; Goniastrea colonies, up to 1 m in diameter, Halimeda-rich calcarenite, small molluscan fauna | |
| Environment: | perireef or subreef |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | poor |
| Abundance in sediment: | abundant |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | paleoecologic analysis |
| Museum repositories: | BMNH | Collection dates: | 1969 |
| Collection method comments: June-September 1969, small additional quantity in 1973 m, altogether 300 specimens found in Aldabra Limestone | |
Metadata
| Also known as: | Reef 3806 | ||
| Database number: | 81008 | ||
| Authorizer: | W. Kiessling | Enterer: | A. Girndt |
| Modifier: | U. Merkel | Research group: | marine invertebrate |
| Created: | 2008-05-26 04:30:29 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | authorizer only | Released: | 2010-05-26 04:30:29 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 27242. | J. D. Taylor. 1978. Faunal response to the instability of reef habitats: Pleistocene molluscan assemblages of Aldabra Atoll. Palaeontology 21(1):1-30 [W. Kiessling/A. Girndt] |