P521011

Uploaded on:
11/03/2009 02:33:52
Type:
Digital Asset
File Size:
322.32 KB
Dimensions:
1000 x 628 pixels
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P number: P521011
Caption: A fossil specimen of Protomiodon spp. A fossil bivalve. (Mollusca, Bivalvia.) Lealt River, North Trotternish, Skye, Invernessshire (Skye), Scotland.
Description: Part of a slab covered in Protomiodon, a Jurassic bivalve from the Great Estuarine Series near the base of the Estheria Shales at the Lealt River, North Trotternish, Skye. British Geological Survey Biostratigraphy Collection number GSE 5438. Green Spot. Protomiodon has a ovate or trigonally ovate and compressed shell, it is unornamented and has pronounced growth rugae. The Great Estuarine Series was characterized by a great thickness of beds of estuarine character and fauna. It attains a maximum thickness in Northern Skye of 600 feet. Bivalves have calcareous shells and have two intermixed phases, an organic matrix and a crystalline calcium carbonate form of calcite or aragonite. Some shells are entirely aragonitic, others are entirely formed from calcite. Figd. F.W.Anderson & L.R.Cox. Proc. Roy Phys. Soc.Edin. Vol XXIII 1948 pt. 2, pl. II fig. 13.
Date taken: 01/01/2003
Photographer: Unknown
Copyright statement: NERC
Orientation: Landscape
Size: 322.32 KB; 1000 x 628 pixels; 85 x 53 mm (print at 300 DPI); 265 x 166 mm (screen at 96 DPI);
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Categories: Best of BGS Images/ Fossils  

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