A diverse calcified cyanobacteria assemblage in the latest Ediacaran

Abstract A three-dimensionally preserved phosphatized cyanobacterial fossil assemblage tentatively identified as a distinct calcified cyanobacterial combination of oscillatorialeans and rivulariacean is recognized in the latest Ediacaran in the southern Shaanxi Province, China based on the morphological and preservation modes. Oscillatorialean cyanobacteria herein contain 3 genera which are Girvanella, Obruchevella and Subtifloria with thin-walled tubes tangled, coiled or aligned. A kind of fan-shaped fossils composed of filaments with tapered trichomes and pseudo-branches, Cambricodium, is clarified as calcified rivulariacean cyanobacteria. Prosperous calcified cyanobacteria co-occurring with the earliest mineralized skeletal tubular fossils Cloudina and Sinotubulites. In addition to contributing new morphological and preservation information, the discovery of these cyanobacteria perhaps strengthens the case for prosperity in cyanobacterial calcification in the terminal Neoproterozoic.

• Publication year

  2020

• Venue

  Precambrian Research

• Publication date

  2020-06-01

• Fields of study

  Environmental Science, Geology

• Identifiers
  DOI 10.1016/j.precamres.2020.105669
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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