| P number: | P521208 |
|---|---|
| Caption: | A fossil specimen of Macoma baltica Linne. A fossil gastropod. (Mollusca, Gastropoda.) Barry Buddon No.1 Borehole, 8.0 m, Forfarshire, Scotland. |
| Description: | Macoma baltica is a bivalve common in estuarine environments around the British Isles with the exception of the south-east. This specimen is Flandrian in age. British Geological Survey Biostratigraphy Collection number GSE 14032. It lives a few centimetres below the surface of sand or muddy sand mainly in estuaries or tidal flats and is found from the upper regions of the intertidal into the sublittoral zone. Almost round, the shell may be up to 25 mm. across. Colour varies between pink, purple, yellow, white and is often blackened in sulphide-rich sediments. Macoma has a large pallial sinus, this is an embayment in the pallial line evolved to accommodate the oversize tubular siphons which extend out for feeding in burrowing bivalves. The depth of the pallial sinus can give an indication of the length of the siphons and hence the depth the animal burrowed. Figd. Armstrong, M., Paterson, I.B. and Browne, M.A.E. Geology of the Perth and Dundee district memoir for 1:50,000 geological sheets 48W, 48E, 49. London : HMSO, 1985. |
| Date taken: | Wed Jan 01 00:00:00 GMT 2003 |
| Photographer: | Unknown |
| Copyright statement: | NERC |
| Orientation: | Landscape |
| Size: | 138.43 KB; 1000 x 775 pixels; 85 x 66 mm (print at 300 DPI); 265 x 205 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Best of BGS Images/ Fossils |
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