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Updated: May 21, 2025
The discovery in 1855, in the Hastings beds of the Isle of Wight, of Gyrogonites, or spore-vessels of the Chara, was the first example of that genus of plants, so common in the tertiary strata, being found in a Secondary or Mesozoic rock. The Purbeck Beds a Member of the Jurassic Group. Subdivisions of that Group. Physical Geography of the Oolite in England and France. Upper Oolite. Purbeck Beds.
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