Stretton Series

paleontology

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July 14, 2026

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The Stretton Series is a division of Late Precambrian rocks found in Shropshire, England, dating back to a period between 4.6 billion and 542 million years ago. These rocks are primarily composed of grayish and greenish siltstones, sandstones, shales, and volcanic rocks, with thicknesses reaching up to 3,500 meters. The Stretton Series is part of the Eastern Longmyndian subdivision and is separated from the overlying Minton Series by an unconformity, indicating a period of erosion. While unfossiliferous, similar rock sequences in other regions, like the Charnian rocks, contain impressions of Precambrian organisms such as Charnia.1

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Longmyndian
…Minton Series and the underlying Stretton Series. The Minton Series, about 1,200 metres in thickness and made up of purple and green shales, sandstones, and conglomerates, is separated from the underlying Stretton Series by an unconformity representing a period of erosion rather than deposition. The Stretton Series, grayish and greenish…
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…Minton Series and the underlying Stretton Series. The Minton Series, about 1,200 metres in thickness and made up of purple and green shales, sandstones, and conglomerates, is separated from the underlying Stretton Series by an unconformity representing a period of erosion rather than deposition. The Stretton Series, grayish and greenish…
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