Guided walk around Osmington (Blackhead)

Osmington offers a quieter stretch of the Jurassic Coast with a rich and varied geological story. This walk takes you across a mix of Upper Jurassic clays and limestones, where we’ll search for fossils such as ammonites, belemnites, and fragments of marine reptiles. The terrain is beautiful but varied, with some uneven ground, making it ideal for those looking for a bit more of a hands-on, authentic experience.

We’ll begin with a short introduction to the geology and the types of fossils we're most likely to find, followed by a brief health and safety talk. Then we’ll spend around two to three hours exploring the foreshore, checking erosion lines, and stopping at a few tucked-away spots that often go overlooked.

  • Late Jurassic deposits (Oxfordian)

    Deposits from a Mediterranean like shallow sea 157 - 155 million years ago.

  • Echinoid and a large Croc tooth

    My best finds of the day! very happy boy indeed. This Metriorhynchid croc tooth is from the Late Jurassic. A formidable predator.

  • Brachipods (Torquirhynchia inconstans)

    Torquirhynchia inconstans is an asymmetric rhynchonellid brachiopod found in the Lower Kimmeridge Clay at Osmington Mills, Dorset. It characterizes the Inconstans Bed, marking the base of the Kimmeridgian stage. Its uncrushed preservation suggests a shallow marine or intertidal habitat during the Late Jurassic.

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  • Pliosaur tooth

    Pliosaurus kevani
    A moment of pure disbelief where your heart races with joy.