Prototaxites fossils may represent an unknown multicellular life‑form, new study suggests
Lead: New chemical and structural analyses of three Prototaxites specimens from the Rhynie chert near Aberdeen suggest this 400‑million‑year‑old, tree‑sized organism cannot be confidently placed among plants, fungi or animals. The study, published last month in Science Advances, finds biomarker signatures and internal anatomy that differ from co‑occurring fungal fossils preserved under the same conditions. … Read more