Rhabdoderma sp remain preserved on shale matrix from the coal measures of Newsham, County Durham, dating back 307 to 316 Mya during the Carboniferous period. Rhabdoderma is an extinct species of Coelacanth fish which lived during the Carboniferous period. Coelacanths are often referred to as "living fossils" because it wasn't until 1938 when the first live specimen was discovered, before that point they had only been identified in the fossil record and were assumed to be extinct. They are actually still evolving today thus they do differ slightly from their prehistoric ancestors which makes the term "living fossil" quite inaccurate. It is undetermined which part of the fish has been preserved because the remains are too insignificant to make any further assumptions. The remains measure 2 cm in length and are supplied in a small plastic bag with an information label.