Fig. 1
Optical and electron microscopy images of six filamentous microfossils. (a–f) Optical images of six filamentous microfossils that were isolated and mounted on ITO glass. The black arrows indicate each target. The corresponding secondary electron images, denoted by (g–l), are provided in sequence. The white arrows on Targets 4 and 6 indicate spherical organic matter, and those on Target 5 indicate protrusions on microfossils. The scale bars in the optical images represent 20 μm, and those in the electron microscopy images represent 10 μm.
