This is one for a tongue in cheek sneaky look at the response to an unusual find – the survival of the casing of a shark’s egg that dates back 310 million years ago on the geological column. It was discovered in a rock in South Yorkshire – a former coal mining region. See https://dailygalaxy.com/2026/04/shark-egg-case-perfectly-preserved/ … Soft bodied remains are not usually fossilised we are told, hence the anomaly. Recently, we have had quite a few fossilised remains from the distant past. This one is similar to others – although the object itself may be novel. Quite clearly the object, and its fellows, were buried extremely quickly – otherwise they would not have been preserved so perfectly. As in the headline.
The fossil was found in Upper Carboniferous rocks – nbear Doncaster. This is the geological strata in which a lot of coal was formed. Coal is mostly made of plants that have been compressed and buried – and it comes in seams, mostly, in the UK. Squashed between sedimentary rocks – silt, sand, clays and mud. As the soft parts were preserved it must have been buried as a result of a catastrophic event. Either local or global. This is emphasized by the fact the shark’s egg casing was not alone. It was part of a fossil assemblage containing both flora and fauna. Fish scales, for example, and coprolites [animal poo], we well as the usual bivalves [shell fish] and arthropods [spiders and things]. As well as a selection of plant material. It would be interesting to find out how close it was to a coal seam.
To see the fossils you can do so by visiting Doncaster Museum.