Leonardosia langei Sommer (Charophyta, Porocharaceae) from Corumbataí Formation (Guadalupian), Piracicaba, SP, Brazil: First record of an antheridium and of corticated thalli. AMGH. 2009;46(1):49-58. Accessed December 15, 2025. https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/176