Molluscan assemblages, Aldabra Atoll, Aldabra Limestone 2 (Pleistocene of Seychelles)

Also known as Reef 3806

Where: Seychelles (9.4° S, 46.4° E: paleocoordinates 9.4° S, 46.5° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Aldabra Limestone Formation, Late/Upper Pleistocene (0.1 - 0.0 Ma)

• 125 000 years (Thompson and Walton 1972)

Environment/lithology: perireef or subreef; limestone

• facies 2: Acropora palifera-dominated facies; scattered coral colonies in a Halimeda-rich calcarenite to calcirudite matrix

Size class: macrofossils

Collected in 1969; reposited in the BMNH

• June-September 1969, small additional quantity in 1973 m, altogether 300 specimens found in Aldabra Limestone

Primary reference: 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]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 81006: authorized by Wolfgang Kiessling, entered by Antje Girndt on 26.05.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Ulvophyceae
 Bryopsidales - Halimedaceae
Halimeda sp. Lamouroux 1812
Anthozoa
 Scleractinia - Faviidae
Favia sp. Oken 1815 stony coral
 Scleractinia - Merulinidae
Goniastrea sp. Milne-Edwards and Haime 1848 stony coral
 Scleractinia - Poritidae
Porites sp. Link 1807 stony coral
 Scleractinia - Euphylliidae
Galaxea sp. Oken 1815 stony coral
 Scleractinia - Acroporidae
"Acropora palifera" = Isopora palifera, "Acropora formosa" = Acropora muricata
"Acropora palifera" = Isopora palifera Lamarck 1816 stony coral
"Acropora formosa" = Acropora muricata Linnaeus 1758 stony coral
Bivalvia
 Pectinida - Plicatulidae
Plicatula sp. Lamarck 1801 scallop
 Pectinida - Pectinoidae
Spondylus sp. Linnaeus 1758 scallop
 Arcida - Arcidae
"Barbatia fusca" = Barbatia (Ustularca) fusca
"Barbatia fusca" = Barbatia (Ustularca) fusca Bruguiére 1792 clam
 Cardiida - Cardiidae
Tridacna maxima Roeding 1798 cockle
 Cardiida - Chamidae
Chama sp. Linnaeus 1758 jewel box
 Cardiida - Trapezidae
Trapezium sp. Mühlfeld 1811 clam
Gastropoda
 Sorbeoconcha - Strombidae
Strombus sp. Linnaeus 1758 conch
 Cerithioidea - Cerithiidae
Cerithium echinatum Lamarck 1822 cerith snail
 Trochoidea - Trochidae
Trochus maculatus Linnaeus 1758 top snail
common
"Tectus mauritianus" = Tectus (Tectus) mauritianus Gmelin 1791 top snail
common
 Trochoidea - Turbinidae
"Turbo argyrostomus" = Turbo (Marmarostoma) argyrostomus
"Turbo argyrostomus" = Turbo (Marmarostoma) argyrostomus Linnaeus 1758 snail
most abundant Gastropod