Structural, physiological, and stable carbon isotopic evidence that the enigmatic Paleozoic fossil Prototaxites formed from rolled liverwort mats

Earth & Environmental Sciences

• liverwort 78%
• Paleozoic 45%
• fossil 39%
• carbon 30%
• fungus 13%
• mixotrophy 12%
• vascular plant 8%
• land 8%
• microfossil 8%
• lichen 8%
• anatomy 7%
• Silurian 7%
• carbon isotope 7%
• cyanobacterium 7%
• Ordovician 7%
• stable isotope 6%
• alga 6%
• gravity 5%
• organism 5%
• degradation 5%
• ecosystem 4%
• water 2%

Agriculture & Biology

• fossils 55%
• mosses and liverworts 53%
• carbon 35%
• microfossils 12%
• Marchantia 12%
• fungi 9%
• carbon isotopes 9%
• embryophytes 8%
• gravity 8%
• stable isotopes 8%
• vascular plants 7%
• lichens 7%
• tree trunk 7%
• Cyanobacteria 6%
• algae 6%
• ecosystems 5%
• degradation 4%
• organisms 4%
• water 3%

Medicine & Life Sciences

• Hepatophyta 100%
• Carbon 53%
• Marchantia 15%
• Embryophyta 13%
• Fungi 13%
• Lichens 10%
• Cyanobacteria 10%
• Gravitation 8%
• Ecosystem 8%
• Anatomy 6%
• Water 5%
• Blood Vessels 4%