The gain of three mitochondrial introns identifies liverworts as the earliest land plants

@article{Qiu1998TheGO,
  title={The gain of three mitochondrial introns identifies liverworts as the earliest land plants},
  author={Y Qiu and Yangrae Cho and Jennifer C. Cox and Jeffrey D. Palmer},
  journal={Nature},
  year={1998},
  volume={394},
  pages={671-674}
}
The first evidence for the emergence of land plants (embryophytes) consists of mid-Ordovician spore tetrads (∼476 Myr old),. The identity of the early plants that produced these spores is unclear; they are sometimes claimed to be liverworts,, but there are no associated megafossils, and similar spores can be produced by a diversity of plants. Indeed, the… CONTINUE READING