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Description: | This is a fossiliferous slab (79mm x 56mm x 19mm) containing a number of fairly well preserved yet incomplete fossils. The fossils include corals, brachiopods, bryozoa and crinoid stems.The largest of these fossils is an incomplete fossil rugose coral called Acervularia ananas (36mm x 22mm x 10mm). The corrallites are all infilled with a pale brown fine grained matrix, which also covers other fossils within the slab. There are two rugose corals sat side by side next to the Acervularia ananas coral. These appear to be cyathophyllum sp. but only the side profile can be seen (12mm & 13mm). Part of a crinoid stem (8mm x 4mm x 4mm) can be seen on the one edge of the specimen. It is partly submerged into the sediment. Two large (42mm & 35mm) bryozoa are located side by side on the one corner with two (19mm & 12mm) more side by side at the opposite corner. The largest of these has got a patch of white on the one end. There also appears to be a cephalon of a trilobite (9mm x 3mm) next to the main coral. The largest brachiopod (17mm x 18mm) is located in the centre of the longer side of the slab. The slab has been sawn on all four sides to form straight polised edges, the base of the slab has also been sawn and polished. This has highlighted the highly fossiliferous content of the slab. The majority of these fossils are grey in colour and stand out well from the pale grey fine grained matrix which makes up the main component of the slab. On the base of the slab written in black ink is the number 4, this refers to Steven Birchs locality 4 (grid ref SO 9370 9210). This specimen was collected from the ripple beds/the fossil trench which is the Much Wenlock Limestone Formation, Nodular Member. This is Silurian in age and dates at c425my. This specimen was collected from the Wrens Nest, Dudley, West Midlands. AR
An incomplete fossiliferous slab inculding bryozoa, brachiopods and coral 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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