Three-dimensional preservation of cellular and subcellular structures suggests 1.6 billion-year-old crown-group red algae
Fig 14
Ramathallus lobatus n. gen., n. sp., NRM X5640.
Environmental scanning electron microscopy (ESEM) images, backscatter mode. (A) Globular bodies (gb) within cells. (B) Coarse crystals (cc) and fine crystals (fc) in diagenetically phosphatized cell walls.