Abstract
We report here that during routine micropalaeontological processing of Silurian limestone samples from North Greenland, a large number of small spherical, spinose microfossils have been isolated. These are comparable with forms studied in thin section by Sannemann1, which have been referred to the group Acritarcha, erected by Evitt2 to accommodate hollow, organic-walled microfossils whose affinities are uncertain. Our material suggests that the walls of the spherical bodies were minerialized rather than organic, throwing doubt on an assignment to the Acritarcha.
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Aldridge, R., Armstrong, H. Spherical phosphatic microfossils from the Silurian of North Greenland. Nature 292, 531–533 (1981). https://doi.org/10.1038/292531a0
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DOI: https://doi.org/10.1038/292531a0
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