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Europe’s Longest Sauropod Trackway Unearthed at Oxfordshire Quarry

The surface was recorded in detail then reburied for protection, with analyses underway and officials weighing future access.

Overview

  • A week-long 2025 excavation mapped four trackways and about 200 additional prints, including a 220-metre trail with nearly 100 metre-long footprints—the longest individual sauropod trackway recorded in Europe.
  • Researchers describe the Oxfordshire surface as the largest dinosaur track site in the UK and possibly the largest mapped globally when earlier finds from the 1990s are included.
  • Most tracks were left by large sauropods likely similar to Cetiosaurus, with rarer three‑toed prints attributed to meat‑eating megalosaurs.
  • High‑resolution drone photogrammetry and 3D modelling from more than 20,000 images yielded gait and speed estimates of roughly 2 m/s (about 4–5 mph), and one print suggests a brief one‑leg weight shift.
  • Sediment sampling and accompanying finds—marine invertebrates, plant material and a crocodile jaw—indicate coastal mudflats 166 million years ago; the working quarry remains closed to the public as Natural England and operator Smiths Bletchington discuss preservation options.