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Uploaded on:
11/03/2009 02:40:05
Digital Asset
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134.03 KB
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P number: P521028
Caption: A fossil specimen of Grandirhynchia laevigata Buckman. A fossil brachiopod. (Brachiopoda.) Entrance to Main Mine, Raasay, Inner Hebrides, Invernessshire, Scotland.
Description: Grandirhynchia laevigata is a member of the Rhynchonellida Order of brachiopods which have strongly convex shells with no apparent hinge-line on the posterior margin. They generally lack the internal platforms of the Pentamerides and almost always have strong radial ridges externally. British Geological Survey Biostratigraphy Collection number GSE 2591. They flourished particularly well in the clear-water, firm-substrate communities and often formed 'nests' comprising hundreds of individuals. In the warm shallow Jurassic seas two main types of brachiopods were left, the ribbed rhynchonellids and the smooth-shelled terabratulids. This specimen is from the Scalpa Sandstone of Middle Lias, Jurassic age and was found at the entrance to Main Mine, Raasay, Inner Hebrides.
Date taken: 01/01/2003
Photographer: Unknown
Copyright statement: NERC
Orientation: Landscape
Size: 134.03 KB; 1000 x 665 pixels; 85 x 56 mm (print at 300 DPI); 265 x 176 mm (screen at 96 DPI);
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