Movie S1.

(3D animation). Microtomographic reconstruction showing inner structures through transparency and sequence of virtual cross sections through the specimens. This 3D animation focuses on the horizontally and vertically oriented string-shaped structures and on their relationship with host rock and bacterial mats.

Organism motility in an oxygenated shallow-marine environment 2.1 billion years ago

Abderrazak El Albani, M. Gabriela Mangano, Luis A. Buatois, Stefan Bengtson, Armelle Riboulleau, Andrey Bekker, Kurt Konhauser, Timothy Lyons, Claire Rollion-Bard, Olabode Bankole, Stellina Gwenaelle Lekele Baghekema, Alain Meunier, Alain Trentesaux, Arnaud Mazurier, Jeremie Aubineau, Claude Laforest, Claude Fontaine, Philippe Recourt, Ernest Chi Fru, Roberto Macchiarelli, Jean Yves Reynaud, Fran├žois Gauthier-Lafaye, and Donald E. Canfield

PNAS. 2019. 116:3431-3436 DOI: 10.1073/pnas.1815721116