Dinocochlea (Part 1): The mysterious spiral of Hastings

Paul D Taylor and Consuelo Sendino (UK) Spiral structures in nature hold a particular fascination on account of their beautiful yet twisted symmetry. The logarithmic spiral coiling of ammonite shells and rams’ horns, the corkscrew helix of a plant tendril, and the planar spiral of a hurricane when viewed from space, all have an aesthetic appeal beyond that of simpler geometrical shapes. Fig. 1. The site in Hastings, as it appears, today where Dinocochlea was discovered during road construction in 1921. This is the first of a two part series on Dinocochlea. The second can be found at: Dinocochlea (Part 2): A possible solution to the mysterious spiral of Hastings. When huge spiral objects were unearthed during road construction in Hastings, almost one hundred years ago, it was not surprising that they attracted the immediate attention of geologists. To this day, the origin of these spirals from the Lower Cretaceous Wadhurst Clay is a puzzle. The story is as follows. History of the find In 1921, St Helens Road in Hastings (now the A2101) was extended westerly to meet up with Seddlescombe Road North (now the A21), thereby providing a bypass to Hastings town centre. Close to Old Roar Glen (a well-known local beauty spot) the workmen excavated a shallow cutting and came across some huge spiral structures lying horizontally in the rock. The engineer in charge of the roadworks immediately notified the Hastings Museum. Those specimens not already bagged as rockery stones by local inhabitants were sent to Dr … Read More

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