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Description: | An incomplete series of fossils which have been poorly preserved which form a fossil death assemblage. This includes the brachiopod Gypidula sp. forming the most common fossil within it. In total there are three of this brachiopod that can be clearly seen (16mm x 18mm x 4mm) (10mm x 9mm x 5mm) (16mm x 17mm x 7mm). These are within a fossiliferous brown fine grained limestone slab (139mm x 83mm x 16mm). The limestone has a muddy texture therefore this is a biomicrite limestone. All of the fossils within the limestone are dark grey in colour. There are brachiopods which have been fragmented and that are buried within the sediment. Therefore it is difficult to identify these. There is one large bryozoan (21mm x 4mm x 2mm) which is curved around one of the brachiopod fragments. On the underside of the slab there are more visible fossil fragments. These include part of a trilobite (14mm x 4mm). There is also a poorly preserved Platyceras sp. gastropod (12mm x 1mm x 3mm) which is covered with matrix. Only the centre of the coil is visible. The other large fossil on the underside of the slab is a Leptaena depressa (19mm x 12mm x 3mm) brachiopod. This has a red metallic lusture to it due to iron oxide alteration. Many of the growth lines have been infilled with the matrix. On the side of the limestone in black ink is the number 12. This indicates that this specimen was collected from Steven Birchs locality 12 (grid ref SO9380 9190). This is from within the Coalbrookdale Formation. This is Silurian dating at c425my and was collected from the Wrens Nest, Dudley, West Midlands. AR
A death assemblage containing fossil Gypidula sp. and Leptaena depressa brachiopods and a Platyceras sp. gastropodwhich 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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