Isoetalean Lycopsid evolution: From the Devonian to the present

Earth & Environmental Sciences

• swamp 70%
• stem 59%
• Triassic 56%
• coal 43%
• growth form 41%
• vascular plant 37%
• fossil record 33%
• trend 32%
• Jurassic 27%
• fossil 24%
• tissue 23%
• history 18%

Agriculture & Biology

• Isoetes 100%
• swamps 51%
• coal 47%
• fossils 45%
• Carboniferous period 42%
• sporangia 26%
• synapomorphy 26%
• microspores 25%
• stem elongation 24%
• vascular plants 22%
• history 16%
• stems 13%
• tissues 9%