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Description: | The micrite matrix is pale brown in colour measuring (65mm x 63mm x 15mm). Within the mud matrix are a large variety of fossils including Atrypa sp. (16mm x 12mm), Tentaculites sp. (8mm), Fistulipora sp. (15mm x 5mm x 3mm), Fenestella sp. (6mm x 8mm x 1mm). There are other brachiopod, crinoid ossicles and bryozoa within the matrix. The matrix slab has oxidised, but has a fresh face of pale grey crystalline micrite on the side. There is one unidentified echinoderm. This may possibly be a crinoid calyx which has a pentagonal symmetry, is rounded with a smooth surface (5mm x 5mm x 2mm). The centre of the fossil has a star shaped depression. This unknown fossil could also be a primative sea urchin. The number 5 in black ink on the underside of the specimen indicates that this specimen was collected from Steven Birchs locality 5 (GR SO 9370 9205). This specimen was from the Much Wenlock Limestone Formation, Nodular Member. This is Silurian dating at c425my, collected from the Wrens Nest, Dudley, West Midlands. AR/CB
A death assemblage with Atrypa sp., Tentaculites sp., Fistulapora sp., Fenestella sp. and a possible small crinoid calyx which are 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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