Question

Lycophytes were tall trees during the carboniferous period. today, the only lycophytes that exist are small, herbaceous plants. what happened?

Answer 1

The living lycophytes are all small and herbaceous, whereas the extinct lycophytes included largetrees, which were important in the formation of coal. ... For most of the Age of Coal, in the Paleozoic's late Carboniferous period (322 million to 290 million years ago), these trees were among the dominant plants of swamp ...