Illustrations of Psilophyton
Tomsk State University & Eco Interface
ido.tsu.ru/en & www.ecointerface.com
Dinopedia
https://dinopedia.fandom.com/wiki/Psilophyton
Psilophyton Fossils
Plant Taxonomy & Wikipedia
www.fossilflowers.org/imgs/jls25/r/F_Psilophyton_princeps_37112.html & en.wikipedia.org
