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The sequence of microspore assemblages associated with the occurrence of crassidurite in coal seams of Yorkshire

By: Smith, A.H.V.
Material type: ArticleArticleDescription: 345-363pp.Subject(s): Sequence of microspore assemblages - Coal seams - Yorkshire | Occurrence - Crassidurite coal seams - Yorkshire | Paleontology - Yorkshire | Paleobotany - Yorkshire In: Geological magazine : Vol. 94 Iss. 1-6 Year. 1957Summary: Abstract An investigation of the sequence of microspores vertically within a number of seams containing horizons of crassidurite has revealed a succession of three distinct phases, each characterized in the main by the dominance of one of the three genera Lycospora, Laevigato-sporites, and Densosporites, The succession begins with the Lycospore phase and culminates in the crassidurite with the Densospore phase. The significance of this succession in relation to the formation of crassidurite and the provenance of Densospores is discussed.
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Bound Journal Collection 550 GEO (Browse shelf) Available 002549

Abstract
An investigation of the sequence of microspores vertically within a number of seams containing horizons of crassidurite has revealed a succession of three distinct phases, each characterized in the main by the dominance of one of the three genera Lycospora, Laevigato-sporites, and Densosporites, The succession begins with the Lycospore phase and culminates in the crassidurite with the Densospore phase. The significance of this succession in relation to the formation of crassidurite and the provenance of Densospores is discussed.

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