Fig. 2: TLM, CLSM, and Raman micrographs of Type A filaments and associated spheres.
From: Cryptic terrestrial fungus-like fossils of the early Ediacaran Period
a Aggregate of Type A filaments associated with small spheres. Filaments are embedded in and sometimes cut by chalcedony botryoids (yellow arrows). Note branching filaments (white arrows), ladder-like branching systems (uppermost and rightmost white arrows), and small spheres (double-headed white arrows). b–d Filaments with multiple orders of branching (e.g., arrows in c). Note short lateral branches (arrows in b and d) and small sphere (lower central in c). e Branching filaments with two short, secondary lateral branches (arrows) approaching toward each other. f A-like branching system (arrow). g Magnification of central right in a, showing ladder-like branching system and two small spheres coaxially aligned with filaments. h CLSM micrograph corresponding to larger box in g (see Supplementary Movie 1). i Raman map of pyrite (peak at ~380 cm–1), corresponding to smaller box in g. j, k Anastomosed networks of filaments. Arrows in k denote associated larger spheres. For each illustrated specimen in this and other figures, its repository information is given in Supplementary Table 3.
