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Description: | A fairly well preserved complete fossil brachiopod called Atrypa sp. (20mm x 17mm x 11mm). It is dark brown in colour. The ribs and growth lines can be clearly seen. The fold prominant (4mm). Around the beak fine layers of the shell have broken away. Where this has occured small patches of a perarly white lusture are visible. A pale brown fine grained matrix infills in between the ribs and growth lines. There is some orange iron oxide staining on the one valve. This is from the Much Wenlock Limestone Formation, Nodular Member. This is Silurian in age and dates at c425my. Collected from the Wrens Nest, Dudley, West Midlands. AR
A fossil brachiopod called Atrypa sp. 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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