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Description: | An complete and well preserved Eospirifer sp. brachiopod (49mm x 36mm x 38mm). It is dark grey in colour with some patches of a lighter pale brown fine grained matrix. There is also a calcitic appearance to some parts of the specimen, particulalry the one patch which is white. The beak is prominant.The hinge line is slightly shorter than the width of the shell (29mm). A prominant sulcus is clearly visible on the pedicle valve. There are a few visible growth lines. The ribs are very clear but fine. On the surface there are a few cracks running through the specimen, in particular two paralell fractures on the pedicle valve. But these do not appear to go very deep. There are secondary bryozoa on the brachial valve (7mm x 9mm) and what appears to be a dark grey coral (8mm x 7mm). Across the surface there are many spots of red iron oxide. On the underside of the specimen written in black ink is the number 12 which indicates that this specimen was collected from Steven Birchs locality 12 (grid ref SO 9380 9190) which is within the Coalbrookdale Formation. This is Silurian in age and dates at c425my. This specimen was collected from the Wrens Nest, Dudley, West Midlands. AR
A complete fossil Eospirifer sp. brachiopod which is approximately 425 million years old | License: | http://creativecommons.org/licenses/by/2.0/uk/ | Publisher: | Dudley Museums Service | Rights holder: | Dudley Museums Service | Subjects: | Steven Birch Collection Geology | Temporal: | Silurian - Wenlock | Source: | Black Country History | Identifier: | http://www.blackcountryhistory.org/colle... | Go to resource |
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