title: Early Devonian (~410 mya) microfossils resembling Characiopsis (Tribophyceae) and Characium (Chlorophyceae).
abstract: Unusual microfossils that occurred associated with fungal spores in the Lower Devonian (~410 mya) Windyfield chert from Scotland were composed of a narrow stipe (2.5-9 μm long) to which was attached an obovoid or elongate drop-shaped cell up to 14 μm long; a basal attachment pad was present in several specimens. The fossils were strikingly similar morphologically to certain present-day unicellular freshwater Tribophyceae and Chlorophyceae, but affinities to the fungal phylum Chytridiomycota also cannot be ruled out. This discovery adds to the inventory of distinctive microbial morphologies in the early non-marine paleoecosystems.
authors.affiliation: Department für Geo- und Umweltwissenschaften, Paläontologie und Geobiologie, Ludwig-Maximilians-Universität, SNSB-Bayerische Staatssammlung für Paläontologie und Geologie, Richard-Wagner-Straße 10, 80333, Munich, Germany.|Department of Ecology and Evolutionary Biology, Natural History Museum and Biodiversity Institute, University of Kansas, Lawrence, Kansas, 66045-7534, USA.
authors.forename: Michael
authors.identifier: 0000-0002-6199-4235
authors.initials: M
authors.lastname: Krings
authors.affiliation: Department für Geo- und Umweltwissenschaften, Paläontologie und Geobiologie, Ludwig-Maximilians-Universität, SNSB-Bayerische Staatssammlung für Paläontologie und Geologie, Richard-Wagner-Straße 10, 80333, Munich, Germany.|Department of Ecology and Evolutionary Biology, Natural History Museum and Biodiversity Institute, University of Kansas, Lawrence, Kansas, 66045-7534, USA.
authors.forename: Carla J
authors.initials: CJ
authors.lastname: Harper
authors.affiliation: Department of Ecology and Evolutionary Biology, Natural History Museum and Biodiversity Institute, University of Kansas, Lawrence, Kansas, 66045-7534, USA.
authors.forename: Edith L
authors.initials: EL
authors.lastname: Taylor
authors.affiliation: Forschungsstelle für Paläobotanik am Geologisch-Paläontologischen Institut, Westfälische Wilhelms-Universität Münster, Heisenbergstraße 2, 48149, Münster, Germany.
authors.forename: Hans
authors.initials: H
authors.lastname: Kerp
mesh_terms: D000460:Chlorophyta / Q000145:classification* / Q000166:cytology; D008411:Chytridiomycota / Q000145:classification* / Q000166:cytology; D005580:Fossils; D058086:Microalgae / Q000145:classification* / Q000166:cytology; D012606:Scotland; D058009:Stramenopiles / Q000145:classification* / Q000166:cytology
keywords: Rhynie; Windyfield; alga; chert; fungi; morphology