BAOLIN, T.; SHIJUN, W.; YINGTING, G.; HONGQI, L.; GUIREN, C. Flora of Palaeozoic coal balls of China. Journal of Palaeosciences, [S. l.], v. 45, p. 247–254, 1996. DOI: 10.54991/jop.1996.1240. Disponível em: https://jpsonline.co.in/index.php/jop/article/view/1240. Acesso em: 28 mar. 2024.