Three-dimensional preservation of cellular and subcellular structures suggests 1.6 billion-year-old crown-group red algae
Fig 13
Ramathallus lobatus n. gen., n. sp., holotype, NRM X5638.
Thin section. (A) Overview of specimen. (B) Detail of A to show cell structure in finger-like protrusions and noncellular apatitic coating. (C) Detail of B to show dark granular material within cells.