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Diplograptus pennaHopkinson 1869, and its bearing on vesicular structures

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Abstract

A redescription ofDiplograptus penna Hopkinson 1869 is given, based largely upon three-dimensional material. The significance of the discoveries is discussed with respect to the concept ofCystograptus Hundt 1942. The so-called «vesicles» of«Orthograptus» vesiculosus Nicholson andDiplograptus penna Hopkinson are interpreted as three-vaned structures.

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Author notes

  1. W. D. V. Jones

    Present address: , 18 Lone Tree Avenue, Impington, Cambridge

  2. R. B. Rickards

    Present address: Dept. of Geology, Trinity College, Eire, Dublin 2

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    1. W. D. V. Jones
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    2. R. B. Rickards
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    Jones, W.D.V., Rickards, R.B. Diplograptus pennaHopkinson 1869, and its bearing on vesicular structures. Paläont. Z. 41, 173–185 (1967). https://doi.org/10.1007/BF02988120

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