Isoetalean Lycopsid evolution: From the Devonian to the present

Earth & Environmental Sciences

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

Agriculture & Biology

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