Molluscan assemblages, Aldabra Atoll, Aldabra Limestone 1: Late/Upper 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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Gastropoda
- Cycloneritida
- Neritopsidae
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Neritopsis radula
(Linnaeus 1758)
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Gastropoda
- Cerithiidae
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Cerithium echinatum
Lamarck 1822
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| few | ||||||||||
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Rhinoclavis asper
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| few | ||||||||||
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Gastropoda
- Naticidae
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Polynices tumida
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| original and current combination Polinices | ||||||||||
| few | ||||||||||
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Gastropoda
- Cypraeidae
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Cypraea helvola
Linnaeus 1758
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| recombined as Cypraea (Erosaria) helvola | ||||||||||
| common | ||||||||||
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Cypraea nucleus
Linnaeus 1758
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| recombined as Cypraea (Staphylaea) nucleus | ||||||||||
| common | ||||||||||
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Cypraea cicercula
Linnaeus 1758
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| recombined as Pustularia cicercula | ||||||||||
| common | ||||||||||
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Gastropoda
- Neogastropoda
- Columbellidae
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Columbella turturina
Lamarck 1822
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| recombined as Pyrene turturina | ||||||||||
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Gastropoda
- Neogastropoda
- Muricidae
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Magilus sp.
Monfort 1810
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Gastropoda
- Neogastropoda
- Conidae
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Conus sponsalis
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Gastropoda
- Trochidae
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Tectus mauritianus
(Gmelin 1791)
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| recombined as Tectus (Tectus) mauritianus | ||||||||||
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Trochus maculatus
Linnaeus 1758
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Gastropoda
- Turbinidae
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Turbo argyrostomus
Linnaeus 1758
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| recombined as Turbo (Marmarostoma) argyrostomus | ||||||||||
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Gastropoda
- Thaididae
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Drupella cornus
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Bivalvia
- Cardiida
- Tellinidae
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Scissulina sp.
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| spelled with current rank as Macoma (Scissulina) | ||||||||||
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Scutarcopagia sp.
Pilsbry 1918
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Pinguitellina sp.
Iredale 1927
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Bivalvia
- Cardiida
- Cardiidae
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Tridacna gigas
(Linnaeus 1758)
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| recombined as Tridacna (Tridacna) gigas | ||||||||||
| rare | ||||||||||
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Tridacna maxima
(Roeding 1798)
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| original and current combination Tridachnes maxima | ||||||||||
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Bivalvia
- Arcida
- Arcidae
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Barbatia fusca
(Bruguiére 1792)
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| recombined as Barbatia (Ustularca) fusca | ||||||||||
| abundant | ||||||||||
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Anthozoa
- Scleractinia
- Euphylliidae
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Galaxea sp.
Oken 1815
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Anthozoa
- Scleractinia
- Pocilloporidae
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Pocillopora eydouxi
Edwards and Haime 1860
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Anthozoa
- Scleractinia
- Acroporidae
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Acropora humilis
(Dana 1846)
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| frequent | ||||||||||
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Acropora formosa
(Dana 1846)
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| synonym of Acropora muricata | ||||||||||
| common | ||||||||||
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Acropora palifera
(Lamarck 1816)
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| recombined as Isopora palifera | ||||||||||
| common | ||||||||||
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Anthozoa
- Scleractinia
- Merulinidae
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Hydnophora sp.
Fischer de Waldheim 1807
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Goniastrea sp.
Milne-Edwards and Haime 1848
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Anthozoa
- Scleractinia
- Faviidae
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Favia sp.
Oken 1815
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Anthozoa
- Scleractinia
- Poritidae
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Goniopora sp.
Blainville 1830
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Porites sp.
Link 1807
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Anthozoa
- Scleractinia
- Fungiidae
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Fungia sp.
Lamarck 1801
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| see common names | ||||||||||
Geography
| Country: | Seychelles |
| Coordinates: | 9.4° South, 46.4° East (view map) |
| Paleocoordinates: | 9.4° South, 46.5° East |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | local area |
Time
| Period: | Quaternary | Epoch: | Pleistocene |
| Stage: | Late/Upper Pleistocene | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Late/Upper Pleistocene | ||
| Age range of interval: | 0.12900 - 0.01170 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 1: Acropora humilis-dominated facies; Halimeda-rich calcarenite separating patches of more or less abundant coral, molluscan fauna very sparse | |
| Environment: | perireef or subreef |
| Geology comments: submerged, shallow, coral-covered bank | |
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 | |
Metadata
| Also known as: | Reef 3806 | ||
| Database number: | 80966 | ||
| Authorizer: | W. Kiessling | Enterer: | A. Girndt |
| Modifier: | U. Merkel | Research group: | marine invertebrate |
| Created: | 2008-05-24 08:52:19 | Last modified: | 2010-03-23 09:20:38 |
| Access level: | authorizer only | Released: | 2010-05-24 08:52:19 |
| Creative Commons license: | CC BY | ||
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] |