“Leonardosia langei Sommer (Charophyta, Porocharaceae) from Corumbataí Formation (Guadalupian), Piracicaba, SP, Brazil: First record of an antheridium and of corticated thalli”, AMGH, vol. 46, no. 1, pp. 49–58, Jun. 2009, Accessed: Jan. 02, 2026. [Online]. Available: https://ameghiniana.org.ar/index.php/ameghiniana/article/view/176