RAMANUJAM, C. Origin and evolution of lycopods. Journal of Palaeosciences, [S. l.], v. 41, p. 51–57, 1992. DOI: 10.54991/jop.1992.1106. Disponível em: https://jpsonline.co.in/index.php/jop/article/view/1106. Acesso em: 6 may. 2024.