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Organically-preserved multicellular eukaryote from the early Ediacaran Nyborg Formation, Arctic Norway

Agić, Heda, 1989- (author)
Uppsala universitet,Paleobiologi,Univ Calif Santa Barbara, Dept Earth Sci, Santa Barbara, CA 93106 USA
Högström, Anette E. S. (author)
UiT Arctic Univ Norway, Arctic Univ Museum Norway, N-9037 Tromso, Norway
Moczydlowska, Malgorzata, 1951- (author)
Uppsala universitet,Paleobiologi
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Jensen, Sören (author)
Univ Extremadura, Area Paleontol, E-06006 Badajoz, Spain
Palacios, Teodoro (author)
Univ Extremadura, Area Paleontol, E-06006 Badajoz, Spain
Meinhold, Guido (author)
Keele Univ, Sch Geog Geol & Environm, Keele ST5 5BG, Staffs, England;Univ Gottingen, Dept Sedimentol & Environm Geol, Goldschmidtstr 3, D-37077 Gottingen, Germany
Ebbestad, Jan Ove R., 1967- (author)
Uppsala universitet,Evolutionsmuseet
Taylor, Wendy L. (author)
Univ Cape Town, Dept Geol Sci, ZA-7701 Rondebosch, South Africa
Höyberget, Magne (author)
Rennesveien 14, N-4513 Mandal, Norway
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 (creator_code:org_t)
2019-10-10
2019
English.
In: Scientific Reports. - : NATURE PUBLISHING GROUP. - 2045-2322. ; 9
Related links:
https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Eukaryotic multicellularity originated in the Mesoproterozoic Era and evolved multiple times since, yet early multicellular fossils are scarce until the terminal Neoproterozoic and often restricted to cases of exceptional preservation. Here we describe unusual organically-preserved fossils from mudrocks, that provide support for the presence of organisms with differentiated cells (potentially an epithelial layer) in the late Neoproterozoic. Cyathinema digermulense gen. et sp. nov. from the Nyborg Formation, Vestertana Group, Digermulen Peninsula in Arctic Norway, is a new carbonaceous organ-taxon which consists of stacked tubes with cup-shaped ends. It represents parts of a larger organism (multicellular eukaryote or a colony), likely with greater preservation potential than its other elements. Arrangement of open-ended tubes invites comparison with cells of an epithelial layer present in a variety of eukaryotic clades. This tissue may have benefitted the organism in: avoiding overgrowth, limiting fouling, reproduction, or water filtration. C. digermulense shares characteristics with extant and fossil groups including red algae and their fossils, demosponge larvae and putative sponge fossils, colonial protists, and nematophytes. Regardless of its precise affinity, C. digermulense was a complex and likely benthic marine eukaryote exhibiting cellular differentiation, and a rare occurrence of early multicellularity outside of Konservat-Lagerstatten.

Subject headings

NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Annan geovetenskap och miljövetenskap (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Other Earth and Related Environmental Sciences (hsv//eng)
NATURVETENSKAP  -- Biologi -- Evolutionsbiologi (hsv//swe)
NATURAL SCIENCES  -- Biological Sciences -- Evolutionary Biology (hsv//eng)

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