@article{article, title  = {{Tetrads in sporangia and spore masses from the upper Silurian and Lower Devonian of the Welsh Borderland}},

 url = {{}},

 year = {{1999}},

 month = {{6}},

 author = {{Edwards D and Wellman CH and Axe L}},

 volume = {{130}},

 journal = {{BOT J LINN SOC}},

 issue = {{2}},

 pages = {{111-156}},

 note = {{Accessed on 2024/12/22}}}