Note on the preservational nature of ornamentation in sphaeromorphs assignable to &amp;lt;i&amp;gt;Tapajonites&amp;lt;/i&amp;gt; Sommer &amp;amp; van Boekel, 1963 (Prasinophyta?)

descriptionPublicationkeyboard_double_arrow_right Article 01 Dec 2000 English Publisher:Copernicus GmbHJournal:Journal of Micropalaeontology, volume 19, pages 159-162 (eissn: 2041-4978,

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Authors: Elz̀bieta Turnau;

doi: 10.1144/jm.19.2.159

Note on the preservational nature of ornamentation in sphaeromorphs assignable to <i>Tapajonites</i> Sommer & van Boekel, 1963 (Prasinophyta?)

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Abstract

Abstract. Assemblages of Middle Devonian (Givetian) phytoplankton from the Holy Cross Mountains include sphaeromorphs possessing blister-like ornamentation typical of the genus Tapajonites Sommer & van Boekel, 1963. Study of the sculptural elements under high magnification indicates the presence of patterns resembling impressions of pyrite crystals. It is suggested that ornamentation in Tapajonites, or at least in some sphaeromorphs assignable to that genus, is of a secondary nature.

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