GONG, Z., LI, Y., METZELTIN, D. and LANGE-BERTALOT, H. 2013. New species of <em>Cymbella</em> and <em>Placoneis</em> (Bacillariophyta) from late Pleistocene Fossil, China. Phytotaxa. 150, 1 (Dec. 2013), 29–40. DOI:https://doi.org/10.11646/phytotaxa.150.1.2.