Multi-million-year-old fossils remain at an ancient quarry in a Milton Keynes estate

    Few people know that there is a Local Geological Site in Great Linford, a Milton Keynes housing estate, which is home to ancient bioclasts.

    Nestled behind the stone circle at Great Linford Manor Park lies an ancient quarry made of Blisworth Limestone. This kind of rock runs from Lincolnshire to Oxfordshire and it is pale grey to yellowish in colour.

    It was predominantly deposited during the Bathonian age, which happened in the Middle Jurassic period, between approximately 168.3-166.1 million years ago. At this time when the limestone was forming, this part of England was a shallow tropical sea dotted with tiny islands, much like the Florida Keys today.

    The quarry is particularly interesting because the rocks contain bioclasts. These are tiny fragments from the skeletons of once-living marine and land organisms, and a type of fossil. Although the stone circle is modern, it was probably hewn from the quarry when the canal was being constructed and the rocks were arranged into a circle in the 1960s.

    The stone circle also contains small fossils of brachiopod, oysters and bivalve molluscs. The Parks Trust thinks that the North and South Pavilions and perhaps some of the other buildings in the park were built from stone excavated from the quarry.

    As part of The Parks Trust's National Lottery Heritage Fund project, the charity wants to ‘Reveal, Revive and Restore’ the historic features of the park to celebrate their heritage. One element they will be improving will be the walls around the ponds. These will be restored with stone sympathetic to the Blisworth Limestone used around the park.

    Have you spotted any fossils in Great Linford? Let us know by emailing

    Source: The Parks Trust blogs

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